I just purchased and had installed this security light over my garage. I had a professional electrician install this, though I might have been able to do it myself, but I'd rather someone else crawl through the attic space in the summer, and I wanted the peace of mind to know that it was done safely and correctly. After it was installed, I had to adjust motion detection sensitivity a bit (to be expected) and it works like a charm. I especially like the dim feature (which can be turned off); the dim feature can be set to dusk + three hours, dusk + 6 hours, or dusk to dawn. This feature can also be turned completley off. Either way, the light immediately goes to full (300W) when someone approaches. It picks us just as well from side to side as directly in front of the unit. As it's just been installed I can't attest to its durability but so far I would recomnend it. Good value and works well.