Gotcha. Ya if i get them i plan to make a rack but plan to use the 4 mounting holes rather than getting the bracket thing.I did/do. There is a small plastic piece that attaches the light to their bracket (they call it the paw or claw they change the name each time). The way I installed the light was to hang them from the bracket. It wasn't really designed to work exactly the way I mounted them so the flimsy brackets are breaking. I had the end one off to 2 part epoxy it back together. If I feel that made it sturdy enough I'm going to take them all off and "fix" them.
You can see the crack in it. I suspect, although can't be positive, that if mounted it to their bracket it probably would've worked without issue.