Solar Street Light 40W

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Q: The power consumption of a street lamp?: Halogen lamp 200W 5 hour kilowatt hourLight bulb 100W 10 hour kilowatt hour

Q: What is the maximum power of a LED street lamp at present?: The road width will agree with bilateral light or lights lighting range with two light source which can increase the road if four hundred watt LED first heat is not good high cost price not low wattage good because more technology with low wattage is relatively mature

Q: How much is the power supply voltage of street lamp LED?: LED Street bus will use two kinds of voltage, a two-phase 220V alternating current, applied to a line and thirty street lights, another is 220V three-phase alternating current, applied to a line and more than thirty sets of lights.

Q: What are the requirements of the LED street lamp chip? How big is it? How many will it take and how big is the distance between them?: To single words, whatever you want a few watts, is generally the number of beads multiples of 7. A single chip is usually 45U, specifically you want what brand, the price is not the same.

Q: How is the rated current of the LED street lamp holder?: For example, the rated power of the lamp is 220W, the rated input voltage is 220V, and the power factor is 0.9Then the rated input current is 220W/220V/0.9=1.11A

Q: Do 150wled street lights use much?: The lamp used in outdoor, to be waterproof and dustproof, so the lamp must be sealed, sealed lamps of water vapor temperature in extreme weather conditions more than 100 degrees, LED continuous work in such a high temperature environment, LED lights if the heat is not good, it is very easy to decay or bad lighting seriously.

Q: Led streetlights power down half, through what?: In order to save the power consumption, LED street lamps design the power of the first half of the night and the latter half of the night power, and the power drop of the LED street lamp is realized by the controller,

Q: The power supply voltage of LED street lamp is the same, but the wattage is different. Can the power supply be general?: Although the output voltage is the same, but the 40W voltage with 50W lights do not work, 50W power to drive 40W lights, no problem.

Q: How is the minimum illuminance of LED street lights Emin obtained? How to calculate?: Minimum illumination Emin, if you go to calculate or use lighting software (DIALux) simulation, you can get the minimum illumination Emin, how to simulate this? This is not clear

Q: Constraints on LED street lights: The development of the domestic LED light source relative to foreign technology started late, from the international leading industry there is a certain distance, although the domestic LED light source theory of life can reach 100 thousand hours, but because of the heat problem cannot be solved completely and effectively, so that the actual life of large discount; unstable power supply system: LED driver power supply is the industry consensus in fact it is not stable, on the LED lighting industry back, because the driving power supply is an important part of the LED street lamp, which will lead to failure of the whole lamp fault. Due to poor reliability of power installed street lights are likely in a short period of time will be bad, the LED street lamp this outdoor height device, difficult installation, maintenance more difficult, for the lamp manufacturers, power supply instability makes the rising cost of maintenance.

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