I am very happy with the lights, but some minor details could have helped the installation. The 8' tubes come with support clips for the middle of the bulb to prevent sagging; however, this is nowhere mentioned in the documentation. The problem with these clips is that the screws provided are not appropriate for the task. After drilling a pilot hole, the screw does not readily pull itself into the hole and it will not get tight. I replaced the provided screws with some self tapping pan head sheet metal screws I had. These worked very well. I think spending a few more pennies on better screws and a small installation document update would result in less frustration.