Does LED street lights save electricity?
LED streetlights do save electricity.LED light is small: LED is basically a small chip, encapsulated in epoxy resin, so it is very small, very light.Low power consumption: LED power consumption is very low, in general, the working voltage of LED is 2-3.6V. The operating current is 0.02-0.03A. That is to say, it consumes no more than 0.1W.
The white LED: in 1998, light white LED is only 5 LM / W, in 1999 has reached 15 LM / W, this index is similar to general household incandescent lamps, and in 2000, light efficiency of white LED has reached 25 LM / W, the index and the tungsten halogen lamp is similar. In 2005, the light efficiency of LED was up to 50 lumens / watt. In 2010, the light efficiency of LED reached more than 100 lumens / watt. The working current of white light LED can reach ampere level. Thus, the development of white LED writers using lighting sources, will become possible reality.
But if using white light LED for lighting, not only light efficiency, and long life (continuous work time of more than 10000 hours), almost no maintenance. At present, the German company Hella LED developed using white light aircraft reading a street lamp; the Australian capital Canberra has used the white LED lighting lamp; city traffic management in China is also white LED to replace the early order of traffic lights. It is foreseeable that in the near future, white light LED will enter the family to replace the existing lighting. LED light source with the use of low-voltage power supply, low energy consumption, strong applicability, high stability, fast response time, no pollution to environment, color light etc., although the price is compared with the existing lighting equipment is expensive, it will inevitably replace the existing lighting device.
