Product Description Built-in PIR infrared motion detector, when detecting motion within 8 meters in a dark environment, the LED dome light will light up immediately. After 20 seconds, when no motion is detected, it will automatically turn off, saving battery life 【Two Modes】There is a switch near the motion sensor, the slide switch turns on/off the photo sensor. When it is turned on, it is not lit during the day, but it is lit at night; when it is turned off, it is lit all day 【Battery Powered Motion Sensor Light】Powered by 4*D battery alkaline batteries (batteries not included), can light up an area of 30 square meters. The battery provides up to 12 months of lighting with an average of 6-8 uses per day 【Super Bright LED Lights】Built-in 80 pieces of bright and long-life SMD2835LEDs. It can diffuse in all directions and has a brightness of up to 300 lumens to ensure that you will not trip in the dark, protecting your lover and children from the fear of darkness at home 【Easy Installation, Wide Applicability】No wires required, quick and easy installation within 5 minutes. Suitable for your bedroom, bathroom, stairs, hallway, workshop, basement, garage entry, roof, doorway. This prevents lights from being left on unnecessarily and increasing your electricity bill. Specification 1. Sensitivity: about 8 meters distance 2. Sensor range: about 120 degrees 3. Number of LEDs: 80 LEDs 4. Light color: white/warm yellow 5. Delay time: 20S 6. LED life: 50000 hours 7. Product Dimensions: 19 x 19 x 6.5 cm, Package Dimensions: 20 x 19.5 x 7 cm 8. Material: ABS 9. Weight: 408g, 492g packed 10. Battery requirements: 4 D-size batteries (not included) Installation Notes: 1. Rotate the back panel of the product clockwise 2. The retaining plug on the back cover is easily lifted, and the back cover is turned clockwise to open 3. Use the included mounting hardware to mount the backplate on the wall, ceiling, or wherever you want 4. Insert the battery into the battery container of the light 5. Cover the back cover , turn the lamp body clockwise, press in the fixing plug, turn the lamp body clockwise to make the back cover tightly fixed Package Contents 1 x Motion Sensor Ceiling Light 1 x fixing plug 1 x instruction manual 4 x screw inserts