I’ve bought about 12 of these things and they all work great. The sensors are just the right distance away, they only go off if it’s night time (unless they’re right next to a permanent light), and the batteries seem to last about a year before I need to change them for high traffic areas, longer for low-traffic areas. Nice and bright and the light comes on instantly with motion. I put them on my shed to light up as I approach it, on my walkway between garage and house to help me see, in dark corners of the yard to deter people, etc