A small indicator light near a switch can signal when lights that are out of sight a in the basement or outdoors, for example a have been left on. If a main ... remain on throughout the night, use a timer or motion detector. ... Both mechanical and solid-state timers are available, and some offer the option of a manual override.
|Author||:||Sarma V. Pisupati|
|Publisher||:||Kendall/Hunt Publishing Company - 2007|