The Advantages and Development of LED Traffic Lights
After generations of technological improvements, LED walk traffic light s have greatly improved their luminous efficiency. The light effect of incandescent lamps and halogen tungsten lamps is 12-24 lumens/W, fluorescent lamps 50-70 lumens/W, sodium lamps 90-140 lumens/W, most of the power consumption becomes heat loss. The improved LED light efficiency will reach 50-200 lumens/watt, and its light monochromaticity is good, the spectrum is narrow, and it can directly emit colored visible light without filtering. Ⅰ. Advantages of LED traffic signal lights 1. Long lifespan The working environment of traffic light s is relatively harsh, with severe cold and heat, sun and rain, so the requirements for lamps are relatively high. The average lifespan of incandescent bulbs for general signal lights is 1000h, and the average lifespan of low-voltage tungsten halogen bulbs is 2000h. The resulting maintenance costs are high. The LED traffic signal lamp has no filame...