I have these lights for a quarter in use and am very satisfied. From the processing you do a very good robust. I've screwed without the spike on the supplied bracket, directly under the roof, and thus beluchte my carport. ATTENTION: It is not a plug here, but since I have made the wiring in junction boxes that is not relevant for me. I have installed OSRAM LED Star 5.5 watts in warm white. The result is perfect. But probably much longer the bulbs not be (I do not know how the size of the GU10 lamps are standardized)