Documentation leaves a lot to be desired. I'm not entirely sure how well the ambient light controller works. have less range. A tiny adjustment equals a few minutes. For my purposes, however, the device is well suited. A lightbulb comes on when I open the cabinet it's installed in, and the light goes out shortly after the cabinet door is closed. There is almost no ambient light in the closet I'm using the motion sensor in, so I don't know how much it affects the ambient light.
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