EPOCH 400W Bifacial Solar Panels,N-Type Class A 12/24 Volt Monocrystalline Solar Panel, High-Efficiency Waterproof Solar Module for RV Camping, Boat, Marine,Off-Grid

I currently have four of these panels and am very impressed with the output. They are nicely constructed and look very nice with the black frame instead of silver. I look forward to adding more panels to my ground mount array soon.

My off grid cabin has been operating my fridge 24/7 and these panels are keeping the batteries topped up. Working well.

The panels seem to be of good quality and in the short time I have used them the provide nearly the rated power. The problem is receiving them without damage. The first set of two panels didn’t even make it to my house, they were so destroyed the shipping company didn’t even bother to bring them. The replacement set did make it but the box was practically destroyed when it arrived. I was hesitant to accept the delivery but after inspecting them and talking to Amazon customer support I decided to try them. As I said before, the panels do work, the frames are banged up and gouged a bit but for my application I guess it’s Ok. The packaging must be improved before I would consider buying more of these otherwise nice panels.

Got two of these to charge a Bluetti EB240 battery. They are well made and have better output in cloudy conditions than the portable Renogy 400W "suitcase" I tried before. With the Bluetti EB240, I only got 300W charging with two of these panels in parallel. Connected serial, the Bluetti displayed an E017 error. Ended up only keeping one of these panels, which gives 275W charging with the Bluetti. The price for these panels is really good, at $236 with a coupon.

Great solar panel. I have mine mounted on the roof of my camping suv to charge my solar generator, even mounted flat (worse possible setup) it still produces up to 350 watts in full sun and on rainy overcast days it consistently reaches 60-150 watts.

In northern SC, winter time, very little direct sunlight. With one panel up for testing, it average 200 watts with very little sun. Even when sun was barely touching the panel, it was still getting 80 watts. No sun, just overcast, 30 watts. Update, winter time, direct sun, pulled in 779 watts, consistently for around 30 minutes. Will update when more sun is available and reflective back side.

I tested these with a multi-meter before putting them on my travel trailer. Both panels tested at over 210 watts. After mounting these on the roof I was able to bring the batteries to full charge while running the refrigerator. I matched these with two 110Ah LiFePo batteries and a Victron charge controller and I couldn't be happier.

These panels came shipped great, one of the panels Voltage goes up and down too frequently, im not sure if there is a short somewhere or what, but that is why I am giving a 3 star rating, the other panel works fine, but I have 3 130 watt eco worthy panels that produce more steady power than these panels produce because of the one bad panel, or voltage drop issue.