The wattage of solar street lights is generally between 20 and 60 watts, which can ensure the brightness of the street lights. However, the specific wattage selection needs to be considered comprehensively based on factors such as road width, climate conditions, and solar panel power generation capacity.

‌The brightness of solar street lights depends on multiple factors, including the height of the light pole, road width, lighting needs, and the energy storage capacity of solar cells. ‌The following is the recommended LED light source power range for solar street lights at some common heights.

Recommended LED light source power range for solar street lights at different heights

‌5-meter solar street light‌: The recommended LED light source power is between 30 watts and 50 watts.

‌6-meter solar street light‌: The recommended LED light source power is between 18 watts and 30 watts.

‌7-meter solar street light‌: The recommended LED light source power is between 30 watts and 42 watts.

‌8-meter solar street light‌: The recommended LED light source power is between 42 watts and 60 watts.

‌9-meter solar street light‌: The recommended LED light source power is between 60 watts and 80 watts.

‌10m solar street light‌: The recommended LED light source power is between 80W and 100W.

These power ranges can ensure that the street light provides sufficient lighting at night, while taking into account the power supply capacity and energy saving requirements of the solar cell. It should be noted that the specific choice still needs to be comprehensively considered according to the actual situation.

In cases where maximum brightness is required, such as in industrial areas or for security purposes, solar street lights exceeding 150 watts may be necessary. These lights often come with advanced features like motion sensors and smart technology to enhance their functionality.

In summary, the brightness of solar street lights is not solely determined by wattage but also by the type of LED used, the height of the installation, and the specific lighting needs of the area. Generally, for most applications, a solar street light between 30 to 60 watts will provide adequate brightness, while larger areas may require lights in the 60 to 150 watts range. Always consider the specific requirements of your space to choose the right wattage for optimal illumination.