YouOkLight 19W 19850lm 6000K 100-2835 White Light LED Induction Ceiling Light - White(AC 90-265V)
This product is a automatic induction lamp using the planar antenna transmitting and receiving as the active sensor the sensor transmit high frequency electromagnetic wave (5.8 GHz) and receive their echo.High sensitivity strong reliability induction distance is 4 to 10 meters 180 x 360 detection angle. 30s time delay automatically turn lights on and off.