Specification: Item Type: Solar Circuit Board Material: ABS, Glass Fiber Applied LED Voltage: 2.8V-3.3V Power: <10w Maximum Input of Solar Panel: 5V-6V/<20W Power Supply: 2 AAA Batteries (Not Included) Induction Method: Light Control Induction, Radar Human Body Induction Sensing Distance: 5-10meters Induction Time: 15 Seconds of High Light, Long Low Light Weight: Approx. 37g / 1.3oz Package List: 1 x Control Board 1 x Remote Control(Battery Not Included) 1 x User Manual Note: 1. This control panel does not have overcharge and overdischarge protection. The battery needs to have its own protection board to connect the battery. Compatible with 3.2V lithium iron phosphate battery and 3.7V lithium battery. It can be used for solar integrated street lamp modification or maintenance. 2. The microwave induction is all on for 15 seconds and then turns slightly on. In order to facilitate the transportation of this product, there is no battery in the remote control. You need to buy a AAA battery locally.