This is a great timer switch for wiring where there is no neutral to wire a standard timer. It runs on batteries and mounts on top of the regular flip switch. when it reaches the set on/ off time, a little motor inside flips the switch on or off. There is no wiring required just one set screw that takes the place of the wall plate screw. The battery last about a year or more and only requires standard AA alkaline batteries
I own 3 of these babies. They are BASIC to install (just screw them on top of the existing switch). They are sortof noisy (just the noise of the mechanism moving up or down to turn the switch on/off). But I love these, easy to program, can have multiple programs. Highly recommend.
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