Battery Operated Detection Light: Powered by 4 D type alkaline batteries (Batteries not included), it can illuminate an area of 300 feet. The battery can provide illumination for up to 8 months. Energy Saving Hallway Light: This light uses 80 bright and long-lasting SMD2835 LED lights. The 300 lumen lights can cover approximately 300 feet and the matte shades are designed to soften the light and won't cause eye discomfort even at night. Motion Sensor Light: Thanks to the motion sensor Built-in PIR infrared motion, when it detects motion up to 10 feet away in dark environment, this LED ceiling light will turn on immediately. If no motion is detected after 20 seconds, it will automatically turn off to save power. Two Modes Available: There is a switch near the motion sensor to turn on/off the lamp. When the switch is on, the lights will be off during the day and can only be turned on at night. When the switch is off, the lights can be activated throughout the day. Easy to Install and Wide Application: No wiring is required and it can be installed quickly and easily in less than 10 minutes. Wireless LED ceiling lights are ideal for illuminating closets, kitchens, stairways, laundry rooms, yards and storage rooms.