Features 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 The sensing distance is 2-5 meters, which varies according to different ambient temperatures With three gear modes adjustable, you can adjust according to your own needs The high quality solar lamp circuit board can fit for wall lamp The product has infrared human body sensing probe, sensitive to use Specification:Item Type: Solar Lamp Circuit Board Model Specifications: YX-402 Product Size: Approx. 19 x 59mm / 0.7 x 2.3in Induction Method: Human infrared sensor Sensing Distance: 2-5 meters (depending on the sensing ambient temperature) Induction Time: 25 seconds Battery Input: 3.7V / 3.2V 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 Three Gear Modes Are Adjustable: 1. Induction highlight + slightly bright 2. Induction highlight + light off 3. Light control Package List:1 x Module1 x Connecting Cable  1 x User Manual  Package List 1 x Module 1 x Connecting Cable 1 x User Manual