Massive 915000517001 is an LED ceiling light with adjustable height, dimmable light, and a built-in Passive Infrared sensor (PIR), making it well-suited for use in a bathroom or other indoor areas. The PIR sensor can detect movement, making it possible to turn the light on automatically when someone enters the room. The light's adjustable height and dimmability allow you to customize the lighting to your needs, and its sleek design complements a variety of decors.