Intermatic TN311 15 Amp Timer for Indoor Lights and Decorations, Grounded This heavy-duty, grounded plug-in timer is easy to program and uses no electricity to operate This outlet timer provides up to 3 On/Off settings per day for control of your lamp, fan, air conditioner, holiday lighting and more This reliable 24 hour mechanical timer features a 3-wire grounded plug and receptacle and is backed by a 5 year warranty This indoor home-use timer switch plugs directly into the wall Features an easy to use manual override (on/off toggle)