If the solar street light has poor heat dissipation, it will accelerate the life of the LED lamp, and affect the lighting effect. Long-term poor heat dissipation will increase the LED light attenuation. Third, the accumulation of heat will cause the lamp holder and other related equipment to age and affect the use. Therefore, the LED solar street light needs to dissipate heat, and the lamp body must use an all-aluminum lampshade. The more powerful solar street light will also use an aluminum lamp holder, and describe a shape with a faster heat dissipation effect and increase the heat dissipation area. In addition, solar street lights can also be adjusted by the controller to reduce the heat of the LED to dissipate heat.