Cool Knight PIR Sense Switch Induction Energy-saving Switch Module Body Motion Sensor Auto on Off Lamps Lights Single wire system universal human body induction switch Can control the 1-200 w LED lamp, incandescent lamp, energy-saving lamp, fluorescent lamp, fan, switch transformer, iron core transformer and other electrical appliances) Based on the technology of infrared automatic control products, when someone enters the switch induction range, special sensors to detect the change of the human body infrared spectrum, switch automatically when load, people don't leave the induction range, switch will continue through to; After the people left, switch delay shut down automatically loads,Cordial is convenient, safety and energy saving Automatic induction: People come the switch on immediately, after the people left delay shut automatically Non-contact electronic switch: switch on the load without the impact of the current moment, prolong the service life of the load. Random delay (delay) for automatic: people in the range of induction activities, switch on all the time, it was not until after the people left automatically shut down, (optional discrete time delay