PANICTECH(TM)9W 3000(K) PIR Infrared Motion Detection Sensor & Light Sensor LED High Performance Energy Saving White Warm White Light Bulb(This is the electric lamp, light automatically shut down during the day, only at night or dark environment can work normally) Light Color: Warm White SIZE 60*60*125mm,150g,Life 30000 hours The bulb detects movement but will only light up when it is dark. Wont work inside closed trans globe, lamps or light fixtures. The sensor must be exposed. The light will stay on up to 2 minutes after you leave the room.