LED Corus Corn lamp light bulb was specially designed for commercial use where energy saving needs are paramount like in hotels, office buildings, airport and warehouses.The light bulb is motion and sound activated with an adjustable detection range of up to 7 meters. LED Corus Corn light bulb lights up instantly when motion or sound is detected, when nothing triggers the light bulb it works on 30% of its full power capability of 40W bringing huge savings. The light bulb provides 3800lm in a bright \"Daylight\" white 6500KNot suitable for dimming.