PANICTECH 7W 3000(K) PIR Infrared Motion Detection Sensor & Light Sensor LED High Performance Energy Saving White Warm White Light BulbThis is the electric lamp, light automatically shut down during the day, only at night or dark environment can work normally) Suitable for home bedroom, household corridor, veranda, home balcony, toilets, underground parking lot, office & shop, etc. SIZE 60*60*115mm,150g,Life 30000 hours Sensing distance 5-8 Meter,Induction Angle of 170 degrees 24 hours without manual switch, combined with optical sensor can realize the day not bright, evening to automatic humanized intelligent energy-saving control Not need to use with dimmer switch. Detects movement but will only light up when it is dark