Adjustable Solar Panel Mounting Brackets // For 20W-100W Panel // Boat, RV, Roof, Wall, Ground Mounting //4 Sets Extra Metal Expansion bolts and nuts //Wrench for Helping Fix the Screws //22-inch

These work well, but the wingnuts won't go on the screw knows when they are tilted because the extension pieces are L shaped. Since I won't be driving while they are up, they stay up fine without the wingnuts.

works ok but inadequate nuts bolts washers ...they are too small for the factory holes in the panel.you would think for the high price ...the hardware would be better quality standard sae... will be looking for another way to mount the next panel. it still works but i need a better cheaper way as ill be adding 3 more panels

Good quality, though connection to a 100W Renogy Panel is not a given. Looks like you would need to drill holes into your solar panel frame to install horizontally or vertically. I added wood to use the Renogy brackets. A photo of my build is included.

The framework for this bracket is good, but the roof anchors are dangerous. If you are going to use this item, find roof anchors that are trustworthy-DO NOT use the supplied anchors. Here is the email I sent to them:"I installed a solar panel on my RV's roof yesterday using your bracket and ran into a disturbing situation. One of the roof anchor threads stripped at the base of the threads before the anchors had been pulled up far enough to get a solid grip. I had to add washers twice to raise the nut high enough to be above the stripped area-I say twice as the threads stripped a second time during the process. I used a wrench to manually turn the nut down and never even got to snug (much less tight) when the threads let go. I was left with a stack of washers about an inch high and left the assembly alone when the nut did reach "snug" as I didn't dare tighten it any further. As this anchor is at the front of the panel and catching the direct force on oncoming wind when driving, I am concerned about it's ability to hold the panel in place. More importantly, I have found over the years as Chinese machine products replaced American made versions, the metal in all fasteners was extremely soft, to the point where even wood screws would strip IN WOOD, or simply snap off. You have that problem here with the anchors you are supplying and given the consequences of a 30 or 40 pound solar panel departing an RV roof at 65 mph in traffic, you need to come up with a better anchor. I plan to post that the bracket is great but warn to come up with different anchors and not to use what you supply."Their response: "Message from 3rd party seller: Dear, Thank you for your purchase and Sorry for the inconvenience. Don't worry,we supply one year wanrranty,and will replace for you if it is defective. Best regards Grace"

Great product, very good value.

I gave this away - it was just too crappy looking/feeling for me to use for the intended purpose.

good value

Fits my Newpowa 100watt monocrystalline panel perfectly.Where the cuts were made in relation to the holes could have been done better. When they're assembled each bracket doesn't line up the same as the other but the holes leave room to adjust for it so it shouldn't effect function. Definitely not enough to take off a star. They serve their purpose just fine.I took the first one I ordered to the hardware store to see how much it would cost to make one myself. The materials I found to build one cost more and the cuts would still have to be made and holes drilled. Ordered a second one on the way out of the hardware store.