Ⅰ. Two working modes are optional! ① When you are within 9-16 feet, the motion-activated light will automatically turn on and turn off 20 seconds after motion. ② If you need to stay for a long time, you can set the wireless light to Stay ON mode and turn it off with the remote control. Ⅱ. No need to buy batteries! The Rechargeable Battery Indoor Motion Sensor Light has a built-in 8000mAh large-capacity battery, which can be charged via USB data cable (included). It takes 10 hours to fully charge the rechargeable ceiling light, but it can work for up to 30-60 days in motion sensor mode and up to 10 hours in constant light mode. Ⅲ. 400 lumens is bright enough to illuminate the entire dark area! The 7.5 inch indoor motion detection sensor light offers 10 brightness levels and 3 color temperatures: cool white, warm white and neutral white. The brightness and color temperature can be adjusted as you like. Ⅳ. This battery-powered ceiling light with remote control has three time options: 15min/30min/60min and Stay-ON mode. Ⅴ. The ceiling light does not need to be wired! You can save the trouble of hiring an electrician. The installation is very simple, only 3 steps and 5 minutes to install by yourself. These wireless motion sensor room lights are suitable for dark places without electricity, such as closets, showers, stairs, pantry, sheds, hallways, porches, garages, etc.