
I use them in my workshop with PAR38 equivalent 250w Sylvania LED lamps. It's a really heavy combination, but I haven't had any issues with the pivot. The PAR38's are heavy enough to push the rail up off the ceiling a bit, so I hold them close to the rail anchors (the problem isn't with the bracket, it's with my cheap rails). I have a Soraa PAR38 in one of the mounts and the thin neck on the bottle makes for a loose fit. Sylvania lamps fit snugly enough to function as a unit.

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