1.The product has infrared human body sensing probe, sensitive to use 2.With three gear modes adjustable, you can adjust according to your own needs 3.The sensing distance is 2-5 meters, which varies according to different ambient temperatures 4.The high quality solar lamp circuit board can fit for wall lamp 5.The control board is protected from overcharge and overdischarge when connected to a 3.7V battery, and the battery needs a protective board when connected to a 3.2V battery Item Type: Solar Lamp Circuit Board_x005F_x000D_Model Specifications: YX-402_x005F_x000D_Product Size: Approx. 19 x 59mm / 0.7 x 2.3in_x005F_x000D_Induction Method: Human infrared sensor_x005F_x000D_Sensing Distance: 2-5 meters (depending on the sensing ambient temperature)_x005F_x000D_Induction Time: 25 seconds_x005F_x000D_Battery Input: 3.7V / 3.2V_x005F_x000D_This control board is protected from overcharge and overdischarge when connected to a 3.7V battery. When the 3.2V battery is connected, the battery must have its own protection board_x005F_x000D_Three Gear Modes Are Adjustable: _x005F_x000D_1. Induction highlight + slightly bright_x005F_x000D_2. Induction highlight + light off_x005F_x000D_3. Light control 1 xModule1 x Connecting Cable 1 x User Manual