because the 8x4 sunhut doesnt really support a light mover a lot had to be customized to hold the weight. That a really big hood too. I went to HomeDepot and got those screen replacement kit. (kind on your window at your house). I took the bars cut them down and filed them(so they didnt cut the hut) and placed them horizontally across the top of the hut. then i took an 8' x 2" of aluminum on top of those then sandwiched the cross beams with that and the lightrail. Worked out pretty good.