The light bulb stays on 25~30S,then the detector automatically shuts the light off unless it continues to sense movement.<br> Built-in a photocell sensor, deactivates the motion sensing light bulb during the daylight hours to save energy.<br> Super bright, gives off 1000 lumen, 85% energy saving, 12W LED replace 100W halogen bulb.<br> For best effectiveness, position a motion sensor light to cover the walks leading to your front and back doors and the driveway<br> Winter sensor range diameter is 13ft-20ft, but in summer the sensing area diameter is 6ft-10ft, it is only half of winter. Its best to mount this motion sensor light bulb 6-10ft. above the ground and position the motion sensor towards to the sensitivity zone.<br> It can not work with enclosed fixture, the motion sensor must exposed outside.<br> Power: 12 watts<br> Light color: warm white<br> Connector: E26/B22<br> Voltage: 85V-265V<br> Color temperature: 3500k<br> Delay: 25~30s<br> Sensing distance: 3~5 meters<br> Product life: 30000H<br> Lamp bead model: 2835 1 watt highlight lamp bead<br> Colour:white<br> Material:PC+Aluminum<br> Size: 60 x 60 x 115mm<br> Package Contents:<br> 1x 12W Light Bulb<br> Only the above package content, other products are not included.<br> Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.