This control board does not have overcharge and overdischarge protection. To connect the battery, the battery must have its own protection board. Compatible with 3.2V lithium iron phosphate battery and 3.7V lithium battery. It can be used for retrofitting or repairing solar integrated street lights. There is no battery in the remote control. You need to buy a AAA battery by yourself. Specification: Rated battery voltage: 3.2V lithium iron phosphate battery / 3.7V ternary lithium battery (the battery needs to have its own protection board) Solar panel input power: 5V-6V Less than 20W Lamp output power: 3V Less than 9w (the virtual standard on the market is 90W) Induction mode: induction high light + low light and long light. Induction time: about 10 seconds Sensing distance: 5-10m Switch: three gears (induction mode/constant light mode/light off) Remote control function: dimming brightness / dimming light mode Remote control size: 105x40mm Color: As Shown Material: plastic Package Contents: 1 * Human body sensing solar light circuit board 1 * Remote Control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.