These lights are very nice except one problem (some others complained about too) is that they only seem to work in test mode. I figured out the issue here. The light sensor is way too sensitive. My neighborhood is dark except for a neighbor 60+ feet away has a small porch light. Just the light from that is enough to make the light on my house think it's daytime. I figured this out because when I cover the light sensor with my finger it works but when I don't it only works in test mode. I also verified that these sensors don't detect IR light from cameras (I have a bunch). So to fix this I will put some sort of film over the light sensor. They're so sensitive that even a single layer of painter's tape isn't enough. But you shouldn't need to totally black them out either. Now why am I keeping these lights? They're the brightest 3 head lights I could find.I did have to send one back because it stopped working after a heavy rain. But the replacement came within 24 hours and it's simple to hook these up so I didn't mind. Obviously if it happens again I'll re-evaluate.Update: I added a small piece of electrical tape covering 3/4ths of the light sensor. Motion detector triggers at night even when the neighbor's (or my own) porch light is on.Update #2: I also had a problem where my neighborhood power went out and when it came back on the lights (which I have permanently wired on) were stuck on and wouldn't go off. Even turning the power off for 5+ seconds and on again did not fix it. But the lights reset themselves and started working normally when the sun came up.
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