What is the difference between LED street lights and traditional street lights in terms of design
LED street lights are different from traditional street lights. The LED light source uses low-voltage DC power supply, which has the unique advantages of high efficiency, safety, energy saving, environmental protection, long life, fast response speed, and high color rendering index, and can be widely used on roads. The outer cover can be made, high temperature resistance up to 135 degrees, low temperature resistance up to -45 degrees, etc. The following is an analysis of LED street lights that are different from traditional street lights in two aspects:
Lighting LEDs have the function of emitting light in a directional manner, because power LEDs are almost all equipped with reflectors, and the efficiency of such reflectors is much higher than that of lamps. LEDs have taken into account their own reflection efficiency when detecting light effects. Road lights using LED should make full use of the characteristics of LED directional emission of light, so that a single LED in the road light can directly emit light to each area of the illuminated road, and then use the auxiliary light distribution of the lamp reflector to achieve a reasonable distribution of road lamps. Light.
The power supply system of LED street lamps is also different from traditional light sources. The constant current driving power required by LEDs is the cornerstone to ensure the normal operation of LEDs. Simple switching power supply solutions often cause damage to LED devices. How to squeeze a group of LEDs closely together is also an indicator for investigating LED street lights. Since the relative variation range of the junction voltage is very small when the LED works forward, ensuring the constant LED drive current basically ensures the constant LED output power.
