Unlike conventional streetlights, LED streetlights utilize a low-voltage DC power supply and generate high-efficiency white light by combining a GaN-based high-power blue LED with a yellow phosphor. They offer unique advantages-such as high efficiency, safety, energy conservation, environmental friendliness, long lifespan, rapid response, and high color rendering-making them widely suitable for roadway applications. The outer housing is constructed to withstand temperatures ranging from -45°C to 135°C.
Furthermore, given that my country's power distribution network employs a three-phase, four-wire system with a grounded neutral, lightning-induced electromagnetic waves can affect the overhead power lines. Because the instantaneous impedance to ground differs between the two lines, a differential-mode interference voltage is generated between them. This transient voltage can range from several hundred to over 3,000 volts, often causing dielectric breakdown in the driver circuit's power rectifier diodes or across the clearance gaps between electrodes of opposite polarity on the printed circuit board (PCB), thereby damaging the LED controller and driver circuitry.