GE 15-Minute Countdown Timer, In Wall Mechanical Switch, Spring Wound, Up to 15 Minutes, Auto Shut Off, 1-Minute Intervals, No Neutral Wire Needed, Ideal for Lights, Exhaust Fans, and Heaters, 15303 Spring-wound timer counts down to shut off at desired time. Up to 15-minute countdown at 1-minute intervals. Ideal for use with lights, exhaust fans, heaters, pumps and other appliances. Easy to install  NO NEUTRAL WIRE needed. Directly wire this timer into a standard light switch (standard toggle or decorator plate) Includes metal wall plate. Incandescent, CFL and LED compatible. Electrical Ratings: 125VAC, 50/60 Hz: 20 A Res./Gen., 7 A Tungsten, 1 HP. 250VAC, 50/60 Hz: 10A Res./Gen.,2 HP. 277VAC, 50/60 Hz: 10 A Res./Gen.,