I installed the LED motion sensor lights in my coat closet, pantry and one inside the garage by the entry door. The lights work nicely. Once they sense motion they come on and are nice and bright and stay on for the right amount of time. Each light takes 3 batteries. It comes with small screws or double sided tape to attach to the wall. Keep in mind these types of attachments are permanent and are not removable without leaving a mark. I love the lights and they work great, but would recommend attaching lights with something that allows you to easily remove and relocate the lights.