Traffic Light Pole - Definition

Traffic light poles are an important part of urban lighting. Traditional street lights usually use high-pressure sodium lamps. Traffic light pole manufacturers say that the overall luminous efficiency of high-pressure sodium lamps is low, resulting in a huge waste of energy. Therefore, the development of new street lamps with energy saving, long life, high color rendering index and environmental protection is of great significance to the energy saving of urban lighting.
High-power LED street lights are different from traditional high-pressure sodium street lights. High-power LED street lights use low-voltage DC power supplies and white light diodes synthesized by GaN-based power blue LEDs and yellow phosphors. It has the unique advantages of safety, energy saving, environmental protection, long service life, fast response speed and high color rendering index. Can be widely used in urban road lighting.
A light-emitting diode (LED) is a solid-state light source based on a semiconductor pn junction that emits light with weak electrical energy. Under a certain forward bias voltage and injection current, the holes injected into the p region and the electrons injected into the n region diffuse into the active region, and emit photons through radiation recombination, which directly converts electrical energy into light energy.