Solar Lamp Battery

Match the solar controller and LED-driver platform. Check the controller’s nominal battery voltage, charge cut-off and low-voltage protection settings. The 3.2V and 12.8V options use different series configurations and cannot be exchanged without matching controller settings.

Calculate one night’s energy first. Multiply LED power in watts by nightly operating hours, divide by controller and driver efficiency, and multiply by the required number of low-sun backup nights. Add margin for the permitted discharge range.

Compare available daily solar Wh with daily load Wh. Estimate input as panel power × effective sun hours × system efficiency, and confirm that controller charge current remains within the battery limit. Use solar data from the project location’s weakest season rather than annual average only.

Only when the complete enclosure meets the project environment. Check IP rating, seals, cable entries, drainage, condensation control, UV exposure, mounting orientation and temperature. The battery pack material or label does not replace the environmental protection of the lighting enclosure.

Provide one complete energy and mechanical data set. Include LED power and dimming schedule, panel power, controller model, required backup nights, installation location, available dimensions, connector, wire length, enclosure protection, quantity and destination market.