Renogy Bifacial 2pcs 550 Watt Solar Panels 12/24 Volt Monocrystalline PV Power Charger On/Off-Grid 1100W Supplies for Rooftop Charging Station Farm Yacht and Other Off-Grid Applications

Love it. It's on the roof of my rv. I mismeasured my roof space so only used 1. and added some smaller ones. Going to use the other on my cargo trailer.

the day before i got them they were on sale for 200 less than when i ordered, feel pretty cheated. otherwise excellent panels.*9

Shattered on delivery. Not delivered on a pallet, shipped flat in a box. No option for a replacement. They were purchased at a sale price so I’m on the losing end of Amazon’s mistake.I have purchased these panels through Renogy in the past and they work great. Renogy is very easy to deal with. I chose Amazon this time because of the sale’s price and I was let down in the lack of options customer support offered me.

I have used renogy for years on sailboats so there was no other choice for my cabin. I expect I will be just as pleased with these as I am with the renogy equipment I already have. Delivery was a full 8 days early, extremely happy about that as we are having weather and delivery would have been in cold wet if on schedule

We first purchased the 550 bifacial panels a month ago and they arrived in perfect condition and provide good power to our ecoflow delta pro ultra. In an effort to charge our batteries faster, we decided to order 2 more. As you can see in the photos, they came shattered. It seems that many solar panel providers ship with minimal protective packaging. The companies could save themselves thousands of dollars by simply adding sturdy protection over the main panels, not just on the sides.All that said, we went ahead and ordered again, hoping they will arrive in the same condition at the first set.

These things are massive. In size and output. Bought the 550 watt panels and did not realize how big these things really are. Going to use it as a screening setup. Laid them on my front grass in not the best angle for testing and saw a peek of 1138. The two days of testing they would still see between 450 to 550 when clouds passes just laying on the grass. These panels easily make there rated output and do well on cloudy days. They are great!

I purchased these panels to expand our ground mount capacity. Our other panels are Q-Cell, so generally I was comparing the quality of these panels to them. I think there is a few notable aspects I wish were better called out in reviewsBifacial aspect:Behind the panels we have a white painted fence about 3 feet away. I expected this white fence to reflect a lot of light to make the bifacial aspect very useful. Although this happens to some effect, at most it's another 100watts. Not enough to justify choosing these panels specifically, but there is something. I hope that results in the winter may show a greater benefit.Size:These 550 watt panels are huge. Although I looked at the specs beforehand, I did not recognize how cumbersome they would be. I wish I had gone with the 450watt versions to make them easier to mount and manage, or a different panel with more typical dimensions.Build Quality:Quality overall seems _ok_, however the frame is notably more flexible and weaker than my other panels. This combined with the large size results in it being very easy for these panels to flex. Panel flex can lead to micro-cracks, so this is a serious concern while transporting, mounting, and maybe even long term. This alone makes me wish I had gone with other panels.Overall:I got these panels on a good sale, close to $800. At that price I feel that these shortcomings are acceptable, and price per-watt was much lower than my Q Cell array. But at the higher prices these often sell at, I would consider other options.

I love these because yes they are big but you only need to wire two and they work outstanding I will be buying more.