This is a circular light with a human sensor. It's for indoor use and can be used in various places. I'm selling it because I bought it but never had a chance to use it. 【About the Sensor】 It detects a range of 120° x 6m and turns on automatically. It automatically turns off about 20 seconds after you leave the detection range. It has 6 LEDs inside, providing enough brightness even in dark places. ※Batteries are not included. Requires 3 AAA batteries. Feel free to comment. Thank you! ☆