Solar Lamp Controller Module Circuit Board Microwave Radar Induction with Switch 3.2V/3.7V Item Type: Solar Lamp Controller Module Model: YX408 Induction Method: Microwave radar induction Induction Distance: 6-10 meters Induction Time: Highlight for 15 seconds, slightly bright Lighting Mode: Automatic light off during the day, automatic radar sensor at night Battery Input: 3.2V / 3.7V Applicable Solar Panel Voltage: 5-6V (Batteries need separate protective plates to prevent overcharging and overdischarging) Applicable Lamp Board Voltage: 2.8V-3.2V Output Power: <10W Size: Approx. 26 x 84mm / 1 x 3.3in This circuit board does not have over-charge and over-discharge protection. To connect the battery, the battery must have its own protection board