A Mechanical timer has many uses. When you go on vacation, this inexpensive timer can turn a single lamp on at 8PM when it gets dark, and turn it off again the next morning. This can help deter burglars by making your home appear as though someone is there. Fish tank lights need to be turned on and off daily for the health of the fish. Using this timer would make such chores so easy you wouldn’t even think about them. Featuring a 24 hour cycle, and a 1/2 hour on/off setting, program this timer for any schedule you need. 125VAC 60Hz. 15 A Resistive / General use. UL/cUL Listed.