Solar street lamp manufacturers' design requirements for LED light source components

Solar street lights must use low-power, high-brightness, and long-life lighting sources. High-power LED light sources are considered to be the most ideal light source in solar street lights due to their high reliability, life of 50,000 hours and high luminous efficiency. .　　 At present, due to the luminous efficiency and cost constraints of LED light sources, solar street lights are mainly used for road lighting in residential areas and road lighting with low brightness requirements, and are rarely used in places that require high-power lighting such as urban main roads.　　In the design of the LED light source, the design of the lamp should be based on the characteristics of the LED itself, and the traditional lamp should not be simply used for simple light source replacement. From the perspective of the appearance structure, the LED light source is small in size and low in single power. Therefore, a lamp needs to use multiple LEDs. If the design is directly based on the shape of a traditional lamp, it is difficult to achieve satisfactory results in the use of heat dissipation and light emission of the LED light source. However, if starting from the characteristics of the LED itself, the lamp (lamp cap part) can be designed to be lighter, thinner and flat, which is not only conducive to the heat dissipation of the LED, but also can become a new type of lamp with a more beautiful appearance that is different from the traditional lamps.　　 From the perspective of the light distribution of the light source, due to the strong directivity of the light of the LED, the reflector of the traditional lamp basically cannot effectively use the light of the LED. Therefore, it is necessary to consider a new light distribution method suitable for LED light sources, such as using LEDs of different powers, and installing the LEDs on a plane at different angles with lenses of different angles to achieve the light distribution effect.