Upgrade daylight/night mode: switch to turn on/off the photoelectric sensor. In daylight mode, lights can be activated all day, while night mode activates only at night. Humanized design for convenient indoor lighting. Motion-activated sensor light with built-in PIR infrared motion detector and 120-degree detection angle. The LED ceiling light turns on immediately when motion is detected within 20 feet (approximately 6 meters). 300 lumens of bright, even illumination powered by 80 high-efficiency SMD2835 LEDs. Light spreads in all directions, covering a wide area up to 300 square feet. The lampshade diffuses light evenly, reducing glare and eye strain, ideal for nighttime use without disturbing sleep. Energy-saving, battery-powered design requires 4 D-type batteries (not included). High-quality LEDs are long-lasting with an estimated lifespan of 50,000 hours. With efficient power usage, batteries can last over 6 months under normal conditions. Note: A protective film is applied to the silver part; remove it before use. Easy to install with no wiring required. Install in minutes on ceilings, walls, or other surfaces. Ideal for closets, pantries, stairwells, sheds, porches, hallways, and bedrooms. Specifications: 1. Detection distance: approximately 5–8 meters 2. Sensor angle: approximately 120 degrees 3. Number of LEDs: 80 4. Light color: white 5. Delay time: 20 seconds 6. LED lifespan: 50,000 hours 7. Dimensions: 19 x 19 x 6.5 cm / 7.5 x 7.5 x 2.6 inches 8. Material: ABS 9. Color: white 10. Power source: 4 D-type batteries (not included) Installation instructions: 1. Turn the back cover counterclockwise to open. 2. Insert the mounting plug into the back cover and secure by turning clockwise. 3. Use included hardware to mount the backplate on desired surface. 4. Insert batteries into the battery compartment. 5. Align and tighten the lamp body clockwise onto the back cover. Package contents: 1 x induction ceiling light 1 x mounting kit (includes 4 screw anchors) Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting and display differences may cause slight color variation between the image and the actual item. Measurement allows for an error of +/- 1–3 cm.