I don't know if this thing is reliable or not as I haven't installed it yet but I gave it 3 stars because it doesn't have a diagram and when I tried to call the supplier (4 brothers) I could not get anything other than the recorded message that they would call me back. I've tried three times. They never did. I tried to figure out which wires would activate the sensor by using an ohmmeter and capping the sensor. I got endless resistance no matter what I did. So I got into the network and found that the red wire goes to the load, black to power, and white to neutral. I probably would have tried something, but I didn't like the idea of climbing up a ladder, installing this thing, and seeing what combination works through trial and error. The device may work well and be durable (my last one didn't), but as I said, the company gets zero stars from me.
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