So I've bought this a few times because in the beginning I bought two of these which were only up to 12 hours for the timer. Then when they came out with new ones that lasted 6pm I immediately bought a pair of every pair I bought because I bought two at a time 4 times now stopped working after a week. It doesn't work at all so I've returned it 4 times to see if I can get a good one that works the same as the first two I bought. But for some reason this new one they made with a longer timer burns out after a week and the bulb that runs the light is 5w and the other 20w is not over the limit at all! Too bad they ruined this product!