The material of the lamp cap of the solar street lamp is usually die-casting aluminum. This material is strong, light and hard. Although it meets the quality requirements of the bulb, it minimizes the weight and makes the bulb safer and more reliable. In addition, aluminum has natural heat dissipation. Advantages are the best choice for lamp holder manufacturing.

Everyone knows that the head of the solar led street lamp is installed on the bracket. If the quality is too high, it will impose too much load on the bushing and bring potential safety hazards. Therefore, while ensuring enough hardness to meet the protection requirements of lamps, the weight of lamps should be reduced as much as possible. In fact, industrial plastics and aluminum alloys can meet the requirements. However, the thermal conductivity of plastic is far from meeting the needs, and it is easy to age in the open wind and rain, thus reducing the life of the lamp and making aluminum alloy. Is the best choice. Similarly, in terms of thermal conductivity, it is second only to silver, copper and gold. Gold and silver are too expensive. The weight of copper is a problem. Aluminum is the best choice. Nowadays, many radiators are made of aluminum, which is the best choice for heat dissipation of fixed devices. There is a passivation layer on the surface of aluminum alloy, which can prevent external corrosion of aluminum alloy. Therefore, it is suitable for use in outdoor environment, greatly improving the service life of aluminum alloy.