Motion Sensor LightBuilt-in PIR infrared motion sensor, this LED ceiling light will turn on instantly when it detects motion up to 5.5m away in dark environment. And it will automatically turn off after 20 seconds when no motion is detected, saving battery power. Two modes available: There is a switch near the motion sensor, make slide the switch to turn on/off the photocell sensor. When turned on, the light stays off during the day and can only be driven at night; when off, the light can be motivated all day Motion sensor light powered by 4 D-Cell alkaline batteries, it can illuminate an area of 180 spft. The battery can provide up to 6 months of lighting with an average use of 20 activations per day Super bright hallway light80 bright SMD2835 LEDs and long life. It casts well in all directions with up to 300 lumens of brightness to ensure you never stumble in the dark. Protect your lover and kids from darkness and fear around the house Easy to Install & Wide Application No wire needed, quick and easy to install within 5 minutes. Suitable for your bedroom, bathroom, stairs, hallway, workshop, basement, driveway, roof, entryway. Don't leave the lights on on your electric bill anymore