Battery-powered Detection Light: Powered by 4 D-type alkaline batteries (Batteries not included), it can illuminate an area of 300 feet.The battery can provide lighting for up to 8 months. Energy Saving Hallway Light: This lamp uses 80 bright and long-lasting SMD2835 LED lights.The 300 lumen lights can cover about 300 feet and the matte shades are designed to soften the light and will not cause discomfort to the eyes even at night. Motion Sensor Lamp: Thanks to the built-in PIR infrared motion sensor, when it detects movement up to 8 meters in a dark environment, this LED ceiling light will turn on immediately.If no movement is detected after 20 seconds, it will automatically turn off to save energy. Two Modes Available: There is a switch near the motion sensor to turn the lamp on/off.When the switch is turned on, the lights will be off during the day and can only be turned on at night.When the switch is turned 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.Cordless LED ceiling lights are ideal for illuminating closets, kitchens, stairs, laundry rooms, courtyards and storage rooms.