Rated 5 out of 5 by 1
Rated 5 out of 5 Heavy Duty Professional Grade
I have installed nine of these timers to control parking lot lights, HVAC equipment, and large Christmas light displays. The battery backup and automatic adjustments for Daylight Saving Time work flawlessly. These timers are a nice alternative to installing light sensors when you use them to control lights you want to turn on/off at dusk/dawn. My only disappointment is the inconsistency in internal clock speed from unit to unit. At the end of a year, timers can be out of sync with one another by three minutes or more.
Note: When power is cut to the timer, the line/load circuit automatically opens. Power must be on for the circuit to remain closed.
January 13, 2012