Lights stairways, closets or other dark areas; Passive IR motion detector; Motion sensor turns on when motion is detected; Auto shutoff after 30 seconds of no movement; 3-position light switch can be set to auto, on or off; Includes mounting bracket with optional peel & stick adhesive pad; Requires 3 AAA batteries; Dim: 2.95H x 2.95W x .95D; 4pk;