The bugs this summer have been driving me crazy especially in the house. When I saw these I figured I'd give them a try, why not? The directions say it could take 3 weeks to see results but after having them plugged in for a couple days I've already seen a little change. Hopefully by 3 weeks all the bugs will finally be out of my house. The nightlight on them is a added bonus and has helped at night to see where I'm going. I'm happy with this purchase.