Category Archives: LED school

LED street lights, commonly known as light source lamps, are lighting fixtures that use semiconductor materials as light-emitting diodes. There are many classifications of LED street lamps. According to different light sources, they can be divided into: halogen lamps (tungsten halogen lamps, xenon lamps), fluorescent lamps (high pressure sodium lamps, high pressure mercury lamps), metal halide lamps and electrodeless lamps. LED street lights are relatively new lighting products in China and are widely used in many cities. The following are several classifications of LED street lights: Light source LED solid-state light source: there are solid-state, fluorescent, halogen and other light sources LED laser light source: there are laser, high-voltage xenon lamp, high-brightness lamp and other light sources LED gas discharge lamps: There are mercury-sodium lamps and halogen-tungsten lamps. Mercury gas discharge lamps convert mercury into xenon through high pressure. LED light source: There are mainly three kinds of LEDs on the market at present, one is an incandescent lamp developed based on the traditional incandescent lamp, which is generally used in the lighting industry The second type is a xenon lamp developed based on a high-pressure gas discharge lamp. This lamp has the advantages of high light efficiency, long life and environmental protection. Appearance Square LED street lights: The traditional street light is round, which is also called urban street light. Triangular LED street lights: LED street lights adopt a triangular installation method and a triangular light source, which can save more than half of the space compared with circular LEDs, and the brightness is many times higher. Rectangular LED street lights: This type of road light has a simple shape design, and the direction of the light pole can be adjusted freely to make the road illumination more uniform. Fan-shaped LED street lights: Because of its unique shape, it is called a round street lamp. This type of lamp is also the most used shape in China. Power supply Direct power supply LED street lights: that is, the low-voltage power supply is directly provided by the street lamp power supply to achieve the purpose of controlling the switching time and power of the LED street lamp. Inductive LED street lights: Control the power supply through induction to control the lighting time and lighting power of the LED street lamp. Indirect power supply type LED street lights: Control the output of high-voltage electric energy through load sensing, and then adjust the switching time and power of LED street lights by dividing the high-voltage electric energy. Rectifier/load hybrid LED street lights: Combine direct power supply and indirect power supply together, so that the electric energy of the power supply can be directly converted into the form of required power.