The light bulb stays on for 25 to 30 seconds, then the detector automatically turns the light off unless movement continues to be sensed. Built-in photocell sensor deactivates the motion sensing light during daylight hours to save energy. Super bright, emits 1000 lumens, 85% energy saving; 12W LED replaces 100W halogen bulb. For best performance, install the motion sensor light to cover pathways leading to front and back doors and the driveway. Winter detection range diameter is 13ft to 20ft; in summer, the sensing area diameter is 6ft to 10ft, approximately half of winter range. It is recommended to mount the motion sensor light 6 to 10 feet above the ground and adjust the sensor toward the desired sensitivity zone. This bulb is not compatible with enclosed fixtures; the motion sensor must be exposed. Power: 12 watts Light color: warm white Base type: E26/B22 Voltage: 85V–265V Color temperature: 3500K Delay time: 25–30 seconds Sensing distance: 3–5 meters Lamp bead model: 2835 1-watt high brightness LED Product lifespan: 30,000 hours Color: white Material: PC + aluminum Size: 60 x 60 x 115mm Package Contents: 6 x 12W Light Bulb Only the items listed above are included; other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance is +/- 1–3 cm.