How do you set a timer for lights to go on and off?
Plug and Play For most timers, plug the timer into the wall outlet, and then plug the light into the timer. Turn the light on and leave it on. The circuit in the timer will then be able to turn the light on and off at the times you set. Set the times and you're good to go.
How do you set a light switch on a timer?
Plug the timer into an electrical outlet and connect your light. Put the programmed timer into any free electrical socket. Plug the power cord from a lamp or other light fixture into an outlet on the timer and turn the light's power switch on so the timer will turn it on and off at the times you programmed.