Replace any wall switch with a timer switch, and you'll save energy by scheduling lights or appliances to run only for limited times. The Heavy-Duty Digital 7-Day Timer Switch can control loads of up to 15 amps, so not only is it powerful enough to control fluorescent or incandescent lights, it can even control appliances, such as your stereo or air conditioner. This easy-to-install switch converts any wall switch to a programmable timer that can set up to 42 weekly on/off settings, up to 6 per day. A wall plate is required and sold separately.