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Review title: Excellent Option Instead of Photocell
Product review: I bought one. I liked so much I bought two more. This appears to be a very good switch that accurately tracks sunrise and sunset. And yes, the battery backup does seem to work well to keep the program if power is lost.It also operates well with compact florescent lights. Most photocells will not do this. I do wish the color was more white like Cooper Electical plates, etc. Instead the "white" is more of a bone color. But I highly recommend. I think it will pay for itself in four months. I always forget to cut off the outside lights.One comment is that the longitude must have a negative sign to get the correct sunrise or sunset. If you want the lights to come on slightly before sunset you can bias the time by entering another latitude or longitude.
