... 3. E27/B22 over10 years 4. CE, RoHS LED FAR-INFRARED SENSOR LAMP, LIGHT INDUCTIONFunctions:In the dark ... or dim circumstance(ambient illumination<2lux), thie LED sensor light will turn on automatically if someone moves ... light; you can turn on /off the emergency LED sensor light by external AC switch independently even ... heat or cold producers such as heater, air conditioner, microwave oven, etc