It has a sticky back so can be placed anywhere. It is motion sensor so it will come on when you walk by it or open a closet door depending on where you put it. Motion Closet Light, With The Removable Hooks Design ( 1kg maximum weight ) for Hanging Towel / Clothes / Hat or any more. And it comes in super handy at night. These lights are so slim and lightweight, it's not a bother at all. The motion sensor is pretty sensitive and lights shut off automatically about 10 seconds after moving out of range. It was a struggle to see my clothes in my closet as it's very dark. No more! Really happy with my purchase.