ECO-WORTHY Roof Solar Panel Mounting Bracket System Kit (Support 1-4 Pieces Solar Panels) for Wooden, Metal, Tile, Cement, and Most Kinds of roof

These worked to install Renergy Panels. The bolts that came with it were an inch too short for my roof tiles so I bought 1/4 lag bolts and used the washers off of the screws that were supplied.

i like how well built they are they hold down the larger panels very well.

I used these to mount four solar panels to the top of my golf cart so I will never have to plug this golf cart in again. They are very well made, good quality, coming from somebody who is pretty finicky about the details of things. I really like the ability to secure and access the bolts from the front of the solar panels and not have to dig underneath where it is hard to reach. See photos and video.

Great mouthing kit. Kit does 1 panel or up to 4 panels in one kit.

I used 3 of these roof mount bracket systems to install 12 panels on my shed. In general the parts were good quality and very sturdy. The only issue seemed to be with the tolerance on the extrusion and the T-nuts, some of the extrusions when tightened down as hard as possible to the L brackets could still slide back and forth. The T-nuts appear to be just slightly too thick and bottom out before fully compressing the extrusion to the L bracket. Fortunately there are enough brackets spaced out when all the panels are tied together nothing is ever going to move as it's acting like a single large sheet, but finding loose brackets when up on the roof is not ideal and frustrating. Good kit, but tolerance on the T-nuts needs to be improved.