From the leading manufacturer of lighting controls, the Intermatic TN311 is an essential energy saving mechanical timer for the home. This heavy-duty unit plugs directly into the wall and will control 120-volt air conditioners, heaters, metal halide and HPS lighting fixtures, and other heavy electrical load appliances. The timer has a three wire grounded plug and outlet for safety, and features include a manual override and up to 3 On/Off settings per day. This CSA certified unit is rated for 125 volts, 15 amps resistive, and will safely handle 1750 watts of tungsten lighting. This durable unit will provide years of reliable, consistent control for the well maintained home.