Cat Night Light and Three Extra Pictures - Four Switchable Cat Inserts Light includes three extra replaceable inserts which allows you to change images at any time. Unlike cheaper models, this bulb is FULLY ENCLOSED and has a glass front for vivid visual displayand attractiveness. Plug can be rotated to accommodate outlets in any direction. Additional replacement bulb is included with each light (4 watt "night light" bulb). Unit is fully U/L approved.