Creating the Chinese dream that everybody can enjoy parity LED street lights

Create low energy , environmentally friendly LED street lighting longevity parity , so that the world can be cheap civilians enjoy my years of Chinese dream.
LED lighting market price is only down with the power of fluorescent lamps prices people can afford to make the world , LED lighting can really enter the blue ocean market , in order to truly mass production . China LED industry chain has all the resources , financial and human resources and the largest demand market, only China can LED lighting industry chain and all the right components to achieve the most cost-effective, the most competitive .
LED lighting industry development over the years prove that LED lights are now one of the tools of human ideal lighting , LED lighting beautify the world , LED lighting, depth in all areas of human life , LED lighting to create a new era in the history of human illumination . Then LED lighting technology also need to constantly innovate and develop new technologies, new materials, new processes, new products to meet the growing demand. Development civilians can afford , affordable LED lighting , LED industry in order to have a more ambitious development, the need to obtain low cost to technological innovation , the need for new design thinking to seek new materials and new architecture.
LED lighting technology innovation to bring a new atmosphere , a new life . LED lamp application technology by the heat obscure low voltage , high current trend of high voltage, low current , HVLEDs thus born , LED lamp board design on one point by a high-power heating tends to low-power, multi-point light, heat a small amount of design, so HVLEDs will become the mainstream ; because plastic clad aluminum radiator easily resolved within the low voltage LED lamps isolated problem , LED drive power is supplied by isolated constant current power supply tends efficient non-isolated constant current power supply , and no transformers, high-voltage linear non-electrolytic capacitors constant current power supply . Over the years to solve problems indoor LED lighting chamber temperature intricate bottleneck ( Fig. 1 ) , power supply and an electrolytic capacitor LED lighting is no longer a short board .


Technological development of the LED light source efficiency , CRI rising production costs and market prices continued to fall ; LED drive power chips all dedicated towards LED lighting constant current source driver IC , LED lighting driver chip highly integrated functionality , such as integrated overvoltage , over temperature, voltage , short circuit, open circuit protection , and its peripheral components application circuit is reduced to 15 or less, application costs also decline ; plastic clad aluminum radiator technology frees a full metal radiator complicated structure design, both to reduce the weight of the radiator and reduces costs .
Based HVLEDs, non-isolated constant current drive power , plastic clad aluminum radiator these major components of LED lighting technology innovation and cost reduction , design, production people could afford cheap Volkswagen LED lamps are ripe . With 5W power LED bulb , for example, its luminous efficiency is equivalent to a 30W incandescent or 25W fluorescent energy-saving lamps , the current design of the production cost can be controlled at RMB12-15 yuan less than the market retail price if they can control each lamp RMB15-20 yuan in , then with better quality fluorescent lamps prices were flat, but the life of LED bulb is energy-saving fluorescent lamps several times , but also than the fluorescent energy-saving lamps . 5W LED light source can be controlled in RMB5 million cost less than the cost of non-isolated drive power can be controlled in RMB2.0-2.5 million, the cost of plastic clad aluminum radiator can be controlled in RMB3.0-3.5 million. For the design , production of inexpensive LED lights to create a viable base material conditions ( Figure 2 ) .


HVLEDs with high-voltage constant-current driver chips , rectifier bridge pile can be surface-mount LED light panels in the same plane , designed to meet the Zhaga standards , customers can DIY self-commutated "photoelectric engine" , which will be integrated in one light source and power supply the modular design is very suitable for automated mass production , high production efficiency , saving labor . The " optical engine" used to design , manufacture LED bulb , downlight , ceiling is very convenient and simple , a finished lamp assembly time is about 40-60 seconds. So , again there is a parity lamp production program , 5W of LED bulb , production costs can be controlled at RMB15-18 yuan ( Figure 3 ) .


Technological innovation power "photoelectric engine" can now heavy weight all-metal mining lamps to 100W high bay light , for example, all-metal mining lamp low voltage high current LED light source, heat is very hot work , so you need bulky aluminum radiator to heat, the entire light weight 5-6Kg; adopted set of high voltage , low current and high-voltage linear HVLEDs constant current drive power in one of the high-power " optical engine" , with high thermal plastic clad aluminum heat Thermals , the entire light weight can be reduced to 1.9-2Kg, the maximum temperature of the radiator when working point is only 80 degrees ( Figure 4 ) .


HVLEDs packaging technology innovation , and the birth of an LED HVLEDs filament filament column and LED chip , using N pcs LED tube core encapsulated in a glass column and glass substrate glass , the series into HVLEDs, operating at IF = 10mA-20mA conditions , the column can be made with the LED filament glowing true 360 degree LED bulb . To four LED strings two filament columns two and 3.6W bulb for example , LED bulbs luminous efficiency > 110Lm / W, CRI> 80 , color temperature of 2700K. Color can be red and blue LED filament column ratio LED die or choose to adjust the color temperature of the die . 8 hours continuous light , LED bulb filament temperature rise of only one or two degrees ( Figure 5 ) . This LED bulb filament RMB15 yuan less than the cost , but also a cheap LED lamp options. 360 degree LED filament lamp similar to incandescent glow and gives nostalgic imagination and recollection .


4014 LED high brightness LED street lighting beads to create opportunities parity with 82-88 teeth and into 4014 lamp beads HVLED, plus the non-isolated constant current power supply switch , powder coated glass tubes produced 16-18W of 1.2 m cheap LED lamp, no spot flicker , brightness beyond the existing 36W fluorescent lamp , the market retail price close to or below 36W fluorescent lamp , life, and power is 36W fluorescent lamp several times. Production costs can be controlled at RMB16-18 million.
Creating the world can enjoy our cheap LED lights LED industry practitioners common Chinese dream, innovative design HVLEDs, innovative design a new generation of non-isolated constant current source switch chip, chip high-voltage constant-current source , a variety of plastic clad innovative design radiator , optical engine , making the design and production of cheap LED lamps dream come true , more and more affordable solution enriched cheap LED lights LED lamps series and variety to the people choose cheap LED lamps have more choices. We are continuing to innovative technology, design more and better affordable LED lighting products to meet the needs of all levels of society .

More info you can visit:http://www.lead-lighting.com/products/bid31-1.htm

LED Street light with Epistar chip

http://www.youtube.com/v/bkbIqbBL5_s?autohide=1&version=3&autohide=1&autoplay=1&showinfo=1&attribution_tag=I9zmtdD8jrhDBlIwCOs3Fw&feature=share

led street lighting made in China: Efficient RGB LED lighting driver promote energy-...

led street lighting made in China: Efficient RGB LED lighting driver promote energy-...: For energy conservation and this has become a consensus in most countries the precedent of the target, try to reduce the electricity cost...

Efficient RGB LED lighting driver promote energy-efficient lighting popularize in the world

For energy conservation and this has become a consensus in most countries the precedent of the target, try to reduce the electricity cost by lighting, is the main task of the electronic design engineer. This kind of environmental conditions, for the LED display the development of the huge business opportunities, because the LED not only have low power consumption characteristics, compared with the traditional lighting solution, it produces less heat, higher energy efficiency, thus driving the LED street lighting to accelerate into real life applications.
Based on the LED lighting applications, the effect of lighting (also known as the building lighting), is one of the fastest growing LED application at present. In the field, RGBLED technique was used to realize the rich lighting color, has become the mainstream.
In effect illumination adopted RGBLED, each LED chip contains three,, red, green, and blue, respectively. Another way to produce different color light is use monochrome red, green and blue leds, and through their optical element by mixing and produce light.
LED driver and micro controller mainly through adjusting the power to control the LED module of color. Thanks to the progress of the semiconductor technology, there are now many low-cost high-performance LED driver came out. For example, can use infineon BCR40x series high edge linear LED drive, through the PWM signal generated by a microcontroller to precisely control the LED color.
All type BCR LED driver with negative temperature coefficient. When the temperature rises, the current will decrease by 0.2% / K. Because have very low consumption characteristic, therefore the current this a series of LED driver has can be used in many fields of lighting, include architectural LED lighting; Advertising word lamp; The decorative LED lights; Refrigerator and freezer etc. Retail lighting; Indication (ladder lighting, emergency lighting exports, etc.); Ships, trains and aircraft interior lighting, etc.
However, the resistor bias is still low power LED widely used methods. There are times when the power LED will be adopted. This method has great disadvantages, such as the light output is not uniform, and shorten the service life of the LED. If choose switch type drive, often cannot reach 0.5 watts LED application required by the price level, also can increase the number of parts and the complexity of drive circuit.
In order to solve these problems, had appeared on the market deal exclusively with 0.5 WLED application solutions, such as infineon BCR321 and BCR421LED drives. In addition, even for 0.1 WLED BCR40xLED drive. These small drive to provide economic and easy solution, for promoting the popularization of LED lighting plays a key role.
In terms of high power LED street lighting , is usually adopted switch type drive. This class driver must have a higher output current, in order to efficiently drive high power leds. But in the pursuit of high efficiency at the same time, the design of high power LED must also cope with over-voltage, over-current and ReWenTi. Therefore, the basic protection function is necessary. Such as infineon ILD4xxx step-down converter series, they have 350 mA and 1200 mA, 1800 mA, such as different level of output current, as well as the overvoltage, overcurrent and overheating protection function, when the junction temperature of 125 ℃, the output current will fell sharply, and extend the service life of the LED.

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led street lighting made in China: The production process of LED street light made in...

led street lighting made in China: The production process of LED street light made in...: LED street lighting   Manufacturing Process Overview LED production process including upstream production of single- wafer substrate , ...

The production process of LED street light made in China

LED street lighting  Manufacturing Process OverviewLED production process including upstream production of single- wafer substrate , epitaxial wafer growth ; midstream chip, electrode fabrication , cutting and testing sorting ; downstream product package.Figure 2.1 LED manufacturing flowchart
LED manufacturing flowchart
§ 2 LED chip production processLED lighting can be applied to the field thanks to high brightness LED chip production technology continues to improve , including a single chip power and brightness increases . LED upstream production technology is the core technology of the LED industry , is currently the leading countries in the technology mainly in Japan , USA, Korea , and Taiwan , and mainland China in the LED upstream production technology by comparison . The following figure shows the microstructure of the upstream epitaxial wafers schematic .
Blu-ray micro- structure epitaxial wafersFigure 2.2 Blu-ray micro- structure epitaxial wafers
The production of high brightness LED chips , has been developed around the world devote goal and direction of LED hair . Currently , the use of high-power chips produced by the white 1W LED Lumen has Danone to 150lm high. LED upstream technology will enable the development of LED lamps getting lower and lower production costs , more LED lighting advantage. In the following example to introduce its blue LED wafer production process is as follows : First, on the production of gallium nitride liner low (GaN) -based epitaxial wafers, this process is mainly in the metal organic chemical vapor deposition of epitaxial wafers furnace (MOCVD) of completion . Ready to produce GaN-based epitaxial wafer and a variety of source materials required purity of the gases , follow the step by step process requirements of the wafer can be done. The substrates used are sapphire, silicon carbide and silicon substrate , and GaAs, AlN, ZnO and other materials.MOCVD is the use of gaseous reactants ( precursors ) and the organometallic group Ⅲ and Ⅴ family reaction of NH3 on the surface of the substrate , the desired product is deposited on the substrate surface. By controlling the temperature, pressure, reactant concentrations and type of scale , thereby controlling the coating composition , the crystal quality of the same . MOCVD epitaxial furnace production of LED epitaxial wafers is the most commonly used devicesIs the LED PN junction and two electrodes for processing , the electrode processing is the key process of production of LED chips , including washing , evaporation , yellow, chemical etching , fusing , grinding ; then dicing the LED MAO , tests and of selected , you can get the desired LED chips .
LED production processFigure 2.3 LED production process
§ 3 high-power LED production processAs LED energy-saving light source power LED, which is a core part of LED energy-saving lamps . High-power LED production process how to directly affect the LED performance, thereby affecting the performance of LED lamps , such as the light fades , light effects and so on.§ 3.1 LED packaging processHigh-power LED packaging products, for example , introduced its packaging process is as follows:
High-power LED street lighting  packaging processFigure 2.4 High-power LED packaging process

1 to Silicone Qiao Yue OE-6250 (A): Joe Vietnam OE-6250 (B) = 1:1 for with plastic .(2) Exhaust : 1 atm / 5mins.3 to suppress lens tweezer top , and then the needle inserted into the ear hole lens filling plastic , glue dispenser pressure at the point first raised 0.15MPA, then noted in the viscosity of glue to make adjustments until the glue from the right face place a small amount of overflow.4 levels of the whole piece bracket upside down , the force compaction .5 more plastic parts with a cotton swab to wipe clean.6 good irrigation glue without baking, the level of the stand at room temperature in a stainless steel plate upside down neatly stored within 24 hours can be.

1 Test : IF = 350mA, VF> 4.0V is bad , VR = 5V, IR> 10uA for the poor .2 test Appearance: Have bubble , debris ﹑ pillars yellow.3 type, quantity, packaging is correct, packaging appearance without defect .
§ 4 LED energy-saving lamps production processLED lighting is the use of LED light source in combination with optical , thermal, mechanical, electrical , aesthetic and other disciplines of knowledge produced a highly efficient energy-saving lamps.
LED energy-saving lamp production technologyFigure 2.5 LED energy saving lamp production technology
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Basic knowledge of introduction to the design of LED lighting driver

Light-emitting diode (LED) Following in the small size of the screen backlighting applications such as portable products get a lot of use , along with its luminescent properties further upgrading and cost optimization in recent years, began to enter the general lighting applications such as architectural lighting , marking cards, landscape lighting , retail , lights , street lighting and residential lighting , its application can be described as the ascendant.On the other hand , LED street lighting design engineers to include the Chinese engineering community , including a challenge , not only because the LED lighting applications very wide range of applications, power level , you can use the drive power supply topologies such as types and , also varies . Engineers have an urgent need to systematically study and learn more about the basics of LED lighting design . For this reason, ON Semiconductor's director of product applications , Mr. Bernie Weir recent relevant training materials specifically written for engineers to impart basic knowledge related to the design , which relates to the general requirements for LED driver , power supply topologies , power factor correction, power conversion efficiency and driver standards, as well as other issues such as reliability and service life , better design to facilitate their entry and improve to better serve the LED lighting market. Due to space limitations , this article is a summary description of the training materials .One , LED drivers General requirementsLED drive faces many challenges, such as the forward voltage with temperature , the current changes, the different components , different batches , different suppliers of the LED forward voltage will vary ; addition, LED 's "color point " will be with the current, and temperature changes drift.In addition, applications often use multiple pieces of LED, which relates to the arrangement of multiple LED problem . Various arrangements , the preferred drive series single-string LED, because in this way regardless of how the changes in forward voltage , the output voltage (Vout) how to " drift " are providing excellent current matching performance. Of course, users can also be used in parallel , series - parallel combination and cross-connect other arrangement for the need for " mutual matching " LED forward voltage applications, and get other benefits . If the cross-connect , if one LED open circuit due to a fault , the circuit has only one LED drive current will be doubled, so as to minimize the impact on the entire circuit .Common LED arrangement


The arrangement of LED and LED light source specification determines the basic drive requirements . LED driver is the main function of the operating conditions in a certain range of the current flowing through the LED restrictions , regardless of the input and output voltage changes . LED driver circuit schematic of the basic work shown in Figure 2 , where the so-called "quarantine" means the AC line voltage and LED ( i.e. input and output) without physical electrical connection , the most common is the use of electrical isolation transformer , the " non-isolated " is not used to electrically isolate high-frequency transformer .LED driver circuit schematic of the basic work


It is worth mentioning that, in the LED lighting design, AC - DC (AC-DC) power conversion circuit with constant current drive two parts can adopt different configurations: 1 ) integral (integral) configuration, that both together , are located within the lighting , the advantages of this configuration include optimizing energy efficiency and simplify the installation, etc. ; 2 ) distributed (distributed) configuration , that is, they exist alone, this configuration simplifies security considerations, and increase flexibility.LED driver according to different application requirements , you can use a constant voltage (CV) output work , the output current range under a certain voltage clamp ; also using a constant current (CC) output , the output is designed to close a current-limited ; also may adopt constant current constant voltage (CCCV) output , namely to provide a constant output power , so as the load of the LED forward voltage to determine its current.
Using AC-DC power LED lighting applications, the power conversion building blocks include diodes , switches (FET), inductors and capacitors and resistors and other discrete components used to perform their respective functions, and pulse-width modulation (PWM) voltage regulator is used to control power conversion. Circuit is usually added to the transformer -isolated AC-DC power converter includes a flyback , forward and half-bridge topology, etc. , see Figure 3 , in which the flyback topology is less than 30 W of power in the standard choice for low-power applications , the half-bridge structure is best suited to provide higher efficiency / power density. The isolation structure of the transformer , its size and the size of switching frequency, and most isolated LED driver basically "e " transformers.

Using DC-DC power LED lighting applications, you can use the LED drive a resistive, linear regulator and switching regulator , etc., the basic application diagram shown in Figure 4. Resistance-type drive mode , adjust the LED current sense resistor in series to control LED forward current, this drive easy to design , low cost , and no electromagnetic compatibility (EMC) problems , weaknesses is dependent on the voltage , need to be screened (binning) LED, and can lower efficiency . Linear regulator is equally easy to design with no EMC problems , also supports the current regulation and over-current protection (fold back), and provides external current set point , drawback is that the power dissipation problem , and should always be higher than the input voltage is positive voltage , and can efficiency is not high. Switching regulator control via PWM control module constantly switch (FET) on and off , and then control the flow of current .

Switching regulator with higher energy efficiency , voltage-independent , and can control the brightness , less is the relatively high cost , complexity is higher, and the presence of electromagnetic interference (EMI) problems . LED DC-DC switching regulators common topologies including buck (Buck), Step-Up (Boost), Buck - Boost (Buck-Boost) or single- ended primary inductance converter (SEPIC) and other different types. Among them, under all operating conditions the minimum input voltage is greater than the maximum LED string voltage step-down structure , such as using 24 Vdc drive 6 series LED; contrast, under all operating conditions the maximum input voltage is less than the minimum output voltage using boost structures, such as use of 12 Vdc drive 6 series LED; while the input voltage and output voltage range can be used when there is overlap buck - boost or SEPIC structure, such as use of 12 Vdc or 12 Vac drive four series LED , the cost of this structure and the energy efficiency is not satisfactory.AC power LED street lighting direct drive way in recent years also has been developed , and its application diagram shown in Figure 5. In this configuration , LED strings are arranged in the opposite direction , operates in half- cycle , and the LED forward voltage greater than the line voltage when turned on. This structure has its advantages, such as avoiding AC-DC converter power loss brought about . However , this structure in the low frequency switch the LED , the enemy eyes flicker may be observed . In addition, this design also need to protect the LED, so that the line from surges or transients .



U.S. Department of Energy (DOE) " Energy Star " (ENERGYSTAR ™) Solid State Lighting (SSL) specification provides that any power level are mandatory to provide power factor correction (PFC). This standard applies to a range of specific products , such as down lights, cabinet lights and lamps, which , residential applications, power factor LED driver must be greater than 0.7 , and commercial applications shall be greater than 0.9 ; But that standards are voluntary standards . EU IEC61000-3-2 harmonic content of the standard provides that a power greater than 25 W of lighting applications total harmonic distortion performance , the maximum limit of the total harmonic distortion (THD) <35%, and the power factor (PF ) > 0.94 . Although not all countries are absolutely mandatory for lighting applications to improve the power factor, but some applications may have this requirement , such as public utilities vigorously promote products with high power factor in the utility of commercial applications, in addition , utilities institutional ownership / maintenance lights , they can decide whether they wish to have a high power factor requirements ( typically> 0.95 + ) .Active PFC application circuit schematic

PFC technology including passive and active PFC PFC two kinds. Passive PFC larger programs , the need for additional components to better changing the current waveform , can reach about 0.8 or a higher power factor . Which, in less than 5 W to 40 W for lower power applications, is almost standard choice flyback topology requires only passive circuit components and minor modifications , you can achieve more than 0.7 power factor. Active PFC ( see Figure 6 ) is generally used as a dedicated power conversion section to the circuit to change the input current waveform . Active PFC typically provide boost, AC 100至277 Vac wide input range , PFC output voltage range of DC 450至480 Vdc. PFC stage if appropriately designed , can provide a 91% to 95 % of the energy efficiency . But increased active PFC, still require specialized DC-DC converter to provide a steady flow of current .Fourth, energy efficiencyThe energy efficiency of LED lighting applications require a combination of power output to consider. U.S. " Energy Star" solid-state lighting level specification of the lighting energy efficiency , but does not involve a separate LED driver efficiency requirements . As mentioned earlier , the use of AC-DC power LED application can be used two-stage distributed topology, it may use an external AC-DC adapter. The " Energy Star" does contain information about single output external power supply specification , the 2.0 version of the external power supply specifications in November 2008 came into force , requiring standard operating mode, minimum efficiency of 87%, while the low-voltage operation mode minimum energy efficiency up to 86 % ; in this specification , the power requirements of up to 100 W when PFC.DOE proposed in autumn 2008 LED lighting energy efficiency research and development goals

In using the AC-DC power LED applications , to provide greater energy efficiency AC-DC converter , it relates to cost, size , performance specifications and energy efficiency trade-offs between such factors . For example , if you use higher quality components , lower on-resistance (RDSon), can reduce losses and improve energy efficiency ; reduce the switching frequency will generally improve energy efficiency , but it will increase the system size. Resonance such as the new topology provides higher efficiency , but also increase the complexity of the design and components . If we design is limited to a narrow power and voltage range, can help optimize energy.

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60w led street lighting made in China for sale

led street light 100w made in China for sale

led street light 100w made in China for sale

120w led street lighting made in China

led street lighting made in China: LED high bay 100w made in China

led street lighting made in China: LED high bay 100w made in China:   The parameter of LED High Bay 100 Watt CL4: LED type COB Power (W) ...

LED high bay 100w made in China

 

The parameter of LED High Bay 100 Watt CL4:

LED type	COB
Power (W)	100 watt
Dimension	Ф205*132mm
Input voltage(V)	85~265V AC
Color index (CRI)	≥75
Efficiency	≥85%
Frequency  (Hz)	47 to 63Hz
Decline	＜3% within 3000Hrs
Life time (Hrs)	≥35,000H
Humidity	5 to 95％ R.H.
Work temperature	-20～+55℃
Stock temperature	-40～+85℃
Power factor (PF)	≥0.95
Warranty	3 years
Certificate	CE  FCC  RoHS

 More info you can visit:http://www.lead-lighting.com/led--high-bay-light/led-high-bay-light-100w-cl4.htm

led street lighting made in China: The world's largest giant Indoor LED Lighting Disp...

led street lighting made in China: The world's largest giant Indoor LED Lighting Disp...: Unique of the world's biggest giant Indoor LED high bay 100w Displays, screen's total area of 661.34016 m2 (facade: 24.96 m * 10....

The world's largest giant Indoor LED Lighting Displays is showing on the way

Unique of the world's biggest giant Indoor LED high bay 100w Displays, screen's total area of 661.34016 m2 (facade: 24.96 m * 10.752 m high; wide flat, wide and 24.96 m * 15.744 m high), it also refreshed the Indoor LED Displays the history of the world record, as the world's largest Indoor LED Displays. This screen is located in wuhan east lake new technology development zone optical valley exhibition hall, like screen L type structure, the optical valley display with the creative conception of L, giant LiBing with giant L show Angle of screen structure, presents the approximate glasses-free 3 d visual impact effect, the new design idea was to convey the from all walks of life.
The world's largest indoor L giant LED display at the wuhan optical valley
Wuhan east lake new technology development zone optical valley floor is one who has a public display, public inquiry, communication studies, and other functions, with education, reception, sightseeing and other functions of urban public window type. This project USES P6LED display screen, the whole screen resolution than conventional screen, can be more window display, will display in the form of more high resolution video image, color rich dynamic effect is prominent. Exhibition hall to the current situation and future of the wuhan east lake new technology development zone through the use of advanced multimedia tools to show to the audience, vivid display of wuhan east lake new technology development zone, strength and future prospects.
The world's largest giant Indoor LED high bay 100w Displays, wuhan optical valley L exhibition hall will be diversified, after completion of multi-level and multi-angle, more creative for the majority of wuhan citizens present urban planning scheme, let the audience can be vivid and clear understanding of urban planning blueprint, and positive interaction, to create the citizens and the development range of flexible, diverse interactive communication platform, let citizens know development zone planning, participate in the city development zone, set up a communication bridge between the development zone and the citizens.

More info you can visit:http://www.lead-lighting.com/led--high-bay-light/led-high-bay-light-100w-cl4.htm

led street lighting made in China: LED high bay 120w made in China

led street lighting made in China: LED high bay 120w made in China:   The parameter of LED High Bay 120W CL3:   LED type LED 1w high power Power...

LED high bay 120w made in China

 

The parameter of LED High Bay 120W CL3:

 

LED type	LED 1w high power
Power (W)	120 watt
Dimension	￠300*330mm
Input voltage(V)	85~265V AC
Color index (CRI)	≥75
Efficiency	≥85%
Frequency  (Hz)	47 to 63Hz
Decline	＜3% within 3000Hrs
Life time (Hrs)	≥35,000H
Humidity	5 to 95％ R.H.
Work temperature	-20～+55℃
Stock temperature	-40～+85℃
Power factor (PF)	≥0.95
Warranty	2-3 years for different price
Certificate	CE  FCC  RoHS

More info you can visit:http://www.lead-lighting.com/led--high-bay-light/led-high-bay-light-120w-cl3.htm

LED high bay 120w made in China

led street lighting made in China: Whcih characteristics should the power of Full...

led street lighting made in China: Whcih characteristics should the power of Full...: Is suing the LED high bay 120w   more and more widely used in our daily life, we are at the heart of the intersection, store it can be s...

Whcih characteristics should the power of Full Color Outdoor LED Lighting Displays have

Is suing the LED high bay 120w  more and more widely used in our daily life, we are at the heart of the intersection, store it can be seen, due to long-term works in Outdoor, is suing the LED Displays in the design, the characteristics of power supply should have in order to guarantee power supply use for a long time?
1. Under certain conditions to keep the LED pixel by constant current drive voltage change caused by screen load change LED group, will affect the current pixel, the change of brightness. Module in order to guarantee the whole screen brightness uniformity and reduce brightness changes, switching power supply output sampling circuit sampling point from power supply port moved is suing the LED Displays some point, the point voltage is kept constant. Load changes caused by voltage change adjustment by switching power supply, namely load hours, low output voltage; Large load and high output voltage. Thus ensures that under the condition of invariable temperature and light, the output to the LED module of voltage constant, pixel drive current constant.
2. By adjusting the voltage to control the display brightness of switch power supply in order to make full use of limited resources, in full color control system for switching power supply can by adjusting the brightness of the output voltage of full color. Need, because of the large Outdoor illumination change, according to the different climate and time will advance and full-color LED Displays is suing brightness corresponds to the voltage made into tables, stored in a single chip microcomputer. According to the light sensor sends out the signal of look-up table, it is concluded that numerical control switch power supply output voltage value, to control the display brightness.
3. The compensation caused by environmental temperature LED the change of the positive pressure drop VF LED the forward voltage drop of VF is along with the rise and fall of the environmental temperature. All kinds of LED temperature variation coefficient of each are not identical. At normal operating temperature range, the change of VF can reach 20% under the constant voltage driver, VF decline will lead to the LED current rise, cause temperature rise as a whole. In the process of this feedback, the working condition of the LED will be more and more worse, seriously affect the quality and life of outdoor screen. So the outdoor screen switch power supply has temperature compensation function, ensure that the LED high bay 120w  drive current does not vary with temperature rising.
Simple method of temperature compensation is in switching power supply, access to the temperature gradient near LEDVF negative temperature coefficient thermistor, and introduction of switch power supply PWM chip reference voltage Vi (Vo = KVi). Temperature rises, Vi fell, the output voltage drops, inhibits the LED working current rise. , because of the large thermal resistance discreteness in order to ensure the consistency of the product, should be selected. In addition, the resistance of each temperature gradient has independent combination, poor compatibility. In order to overcome these shortcomings, the use of the numerical control switch power supply output is controlled by digital signal. According to various LED WenPiao curve, will need to provide the LED driver voltage under different temperature table, stored in the MCU, for your query. According to the temperature sensor temperature measured by microcontroller look-up table, they can get the corresponding numerical control switch power supply output voltage.

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led street lighting made in China: The installation of the LED high bay 200w

led street lighting made in China: The installation of the LED high bay 200w: Proved that the cold light source, LED lighting lamps and lanterns has the advantages of energy saving, long life and so on many occasion...

The installation of the LED high bay 200w

Proved that the cold light source, LED lighting lamps and lanterns has the advantages of energy saving, long life and so on many occasions of LED, strong industrial and mining lamp power consumption is introduced, transformation for the LED high bay is also major lamps and lanterns of s.
LED high bay has many advantages, applicable place also is very extensive, but wants to develop a real LED high bay, so about the LED high bay device is also very important.
Below summarizes the LED high bay 200w device for everyone to pay attention to several aspects:
1) the pins of the power of the light body through the hook silicone ring, then put the hook into the screwing in the lamp body.
2) the chimney into the lamp body.
3) will the LED high bay lift on the davit, fixed drive power supply.
4) connect the LED high bay on the power cord and drive power supply output line (dc), is the cathode can't wrong, red for positive, black for negative.
5) to connect and drive power input line and grid electricity.
Installation note above points are important, in short, safety first!

LED high bay 200w Adopting Epistar / Bridgelux integrated Chip as light source with high lighting efficiency, high CRI, low light degradation.
LED high bay light is designed for used in warehouse, mine, factory etc. The high bay LED lights use super bright white LED source, the outer casing is made of aluminum alloy, and the lamp is with optional efficient lens. LED high bay lights use copper and aluminum alloy heat conduction strips.
High brightness COB Led Chip as light source, low voltage constant current drive.
Made by high pure Aluminum alloy, static electricity spraying finish on the surface, constant temperature solidity, high adhesive force, waterproof, dustproof and fresh structure.
Perfect shock-proof and good heat dissipation, simple appearance.
Hanging installation type, easy to install.

More info you can visit:http://www.lead-lighting.com/led--high-bay-light/ld-hbl-200w-cl2+led-high-bay-light-200w.htm

led street lighting made in China: LED Street light 100W

led street lighting made in China: LED Street light 100W:   Main Features of Led Street light CL2 series   1.high heat conducting efficiency,low lumens depreciation,high light  purity,and...

LED Street light 100W

 

Main Features of Led Street light CL2 series 

1.high heat conducting efficiency,low lumens depreciation,high light  purity,and no double image

2.IP65 standard, free from water,dust and corrosion

3.Breadth working voltage,and constant flow and pressure

4.Environmental protection,no pollution of lead and Hg

5.The decorative effect is wonderful,the surface adopted special process

 

Illuminant parameters of Led Street light CL2 series

Input Voltage:AC 85V - 265V;LED type:High power led

Frequency (Hz):47 to 63Hz,Color index(CRI): ≥ 75Ra

Power efficiency: ≥ 85 ％ , Power factor (PF):≥ 0.95  

IP65,Color range:2800 - 7500K,Warranty:2 years

LED life span: >35,000hours,11 - 12hours/day for 12 years

 

Appearance parameters of Led Street light CL2 series

Lamp Body Material: Aluminum

Color of lamp shell: Gray

 

 

More info you can visit:http://www.lead-lighting.com/products/bid31-1.htm

led street lighting made in China: 120w LED Street light

led street lighting made in China: 120w LED Street light:     Main Features of Led Street light CL2 series   1.high heat conducting efficiency,low lumens depreciation,high light  purity...

120w LED Street light

 

 

Main Features of Led Street light CL2 series 

1.high heat conducting efficiency,low lumens depreciation,high light  purity,and no double image

2.IP65 standard, free from water,dust and corrosion

3.Breadth working voltage,and constant flow and pressure

4.Environmental protection,no pollution of lead and Hg

5.The decorative effect is wonderful,the surface adopted special process

 

Illuminant parameters of Led Street light CL2 series

Input Voltage:AC 85V - 265V;LED type:High power led

Frequency (Hz):47 to 63Hz,Color index(CRI): ≥ 75Ra

Power efficiency: ≥ 85 ％ , Power factor (PF):≥ 0.95  

IP65,Color range:2800 - 7500K,Warranty:2 years

LED life span: >35,000hours,11 - 12hours/day for 12 years

 

Appearance parameters of Led Street light CL2 series

Lamp Body Material: Aluminum

Color of lamp shell: Gray

 

 

More info you can visit:http://www.lead-lighting.com/products/bid31-1.htm

led street lighting made in China: Led Street light 150w

led street lighting made in China: Led Street light 150w:     Main Features of Led Street light CL2 series   1.high heat conducting efficiency,low lumens depreciation,high light  purity...

Led Street light 150w

 

 

Main Features of Led Street light CL2 series 

1.high heat conducting efficiency,low lumens depreciation,high light  purity,and no double image

2.IP65 standard, free from water,dust and corrosion

3.Breadth working voltage,and constant flow and pressure

4.Environmental protection,no pollution of lead and Hg

5.The decorative effect is wonderful,the surface adopted special process

 

Illuminant parameters of Led Street light CL2 series

Input Voltage:AC 85V - 265V;LED type:High power led

Frequency (Hz):47 to 63Hz,Color index(CRI): ≥ 75Ra

Power efficiency: ≥ 85 ％ , Power factor (PF):≥ 0.95  

IP65,Color range:2800 - 7500K,Warranty:2 years

LED life span: >35,000hours,11 - 12hours/day for 12 years

 

Appearance parameters of Led Street light CL2 series

Lamp Body Material: Aluminum

Color of lamp shell: Gray

 

 

More info you can visit:http://www.lead-lighting.com/products/bid31-1.htm