PIR Infrared detection sensor, adopt infrared detection method to control the charging switch. Easy to install and use, Adjust light soft and stable, no flicker PIR sensor has an effective range of 16 feet and decreased detection of a moving human body to 26 feet. You can easily let the light turn on/off automatically. The switch can detect the infrared of the human body and use the infrared to control the load Suitable for incandescent lamps, energy-saving lamps, LED lamps, fluorescent lamps and d 'other load types