Bests & Worsts Reviews from Amazon

This digital timer is silent and small. I use it for turning lamps on and off, and it has been working perfectly for the month or so that I have had it. The timer energy comes from the AC outlet, and there is a battery backup for times of power failure. (Unfortunately, I think most of us are familiar with the latter.) An important feature is that the after a power failure the battery is recharged by the unit and is ready for the next backup. Some timers use the battery power to run the clock and timer instead of the AC. Those timers require replacing batteries frequently, but not this one. It is nice that the timer program is retained during the power outage so that it does not have to be reprogrammed after each occurrence. Also, the design is such that when plugged into one side of a duplex AC outlet, it allows the other side to be used by another device, i.e. it does not block the other side of the the duplex outlet. IMO, this is an excellent product.