I've seen reviews commenting on the sensitivity and the lights coming on during the day. There is a dial that controls that, so I'm guessing those other reviewers didn't adjust that correctly. My lights only come on at night.
I will be curious to see how they hold up in a Minnesota winter where it can stay at 25 degrees below zero for several days. Generally speaking, a lot of things don't work right at those temps.
UPDATE: Since my original review a few months ago, I have a problem where the motion light acts like a strobe light when it comes on. Not sure how to fix this, but it's happening on occasion with both units I ordered. Maybe this is not well suited for cold weather. See attached video to see what it is doing.