Westek TMSW12HS Indoor Wire-In Spring Wound Countdown Timer, Stainless, 12 Hour
You'll never forget to turn off the lights if they're connected to an easy-to-use wall-mounted timer. The Spring Wound Countdown Timer automatically shuts off lights, a fan or almost any other hardwired electrical appliance within its power range. It has a mechanical design that breaks the circuit completely at the end of the timing cycle you specify, set it for any length of time up to 12 hours.