The Gardner Bender Door Switch Kit mounts in your door jam to operate lights and other electrical items. It consists of a push-button switch with a metal box, a cover plate, and mounting hardware included. It is a momentary-contact-normally-on switch with a single pole, a single switch mechanism, and 6-inch leads. Gardner Bender has 50 years of experience making professional electrical tools and supplies of consistently superior quality, so you can count on high-performance products at a fair price.
Door Switch, Brass Mounting Plate & Steel Box, Designed to Work With AC or DC Systems, Turns Current On When the Door Opens, Off When The Door Closes,Single Pole, Carded.

Make your closet light turn on or off when you open or close the door
Save money by reducing your electric bill and lengthening bulb life
Works with sliding or hinged doors
Had it up to here with replacing burnt-out light bulbs because you or someone in your household forgot to turn off the closet light? Simplify matters by equipping your closet door with a convenient automatic light switch! Just mount this spring-loaded light switch button into the door jamb, and your closet light will automatically turn on or off when you open or close the closet door -- just like a refrigerator! In addition to being extremely convenient, these energy-efficient devices will also help you save money by reducing your electric bill and lengthening bulb life. They're also great for family members who might not be able to reach pull-chain light switches, like kids or individuals with limited mobility.