ECO-WORTHY 400W Solar Panels 4pcs 100 Watt 18V Monocrystalline Solar Panel Module for Off Grid PV Power for Home, Camping, Boat, Shed Farm, RV,12V Battery,2-Pack 2 * 100W

I picked up these 4 - 100w panels for about $50.00 each on a Black Friday deal, thinking they would make a nice addition to my Express van camper. They shipped quickly, but only 2 of the 4 arrived initially, the 2 went back, and the 4 finally arrived. I tested each panel, one at a time, connecting them to my Delta 2 while on my balcony. I was looking for consistent performance from each panel, and how they would perform, flat versus tilted, in So Cal on a sunny December day. The panels each delivered 20 - 30 watts flat, and about 35-45 watts tilted around 30 degrees. Performance was about what I expected and reinforced my plans to incorporate some kind of tilt mechanism when mounted on my vans roof.Then while fiddling with a panel, a gust of wind caught it, I lost my grip, and watched my panel crash to the ground, fortunately it hit on a corner and stuck into the sod. After rinsing it off, inspecting for damage, finding nothing visible, I tested it out again and was surprised to find it working just fine. These things are well built. It is now 2 months later, they are mounted on the roof of my van, with my homemade tilt mount mechanism, and the days are getting longer. The panels are mounted in a serial - parallel manner and I am happily getting as high as 300-315 watts on a good day. Overall, I am pleased with the purchase, performance, and the price. As spring approaches, I may get a few more watts yet, as I tinker with my tilt angles.

First, I admit this was a purchase based on price. Four, 100-watt panels cost about $52 each. That's pretty good. And it wasn't an impulse buy, I had these in my cart for a week before I made the purchase. They arrived a few days sooner than estimated, which was cool. But I still had to wait a few days for some good sun to test them out.The packaging was pretty good, as long as they weren't mistreated. they came 2 in a box, back-to-back, panels facing out, with a piece of sturdy foam about 1/2 inch thick. That wouldn't do much but keep them from scratching. The carton wasn't particularly rigid, but both boxes arrived in good shape, no damage or scratches to either panel.There was some amazing corner piece though. Instead of foam corners like I've seen in other purchases, these were thick rigid plastic, that actually could contribute to a temporary installation. I say temporary because the odds are they won't last. UV can damage plastic in under a year, IMHO.With a relatively bright winter sun, I got 23.5 volts from all four of these.I look forward to further experimentation.

Having had these for about eight months now, they lasted through the worst heat, and several ice storms. The voltage remains unaffected, and they are still performing as expected. I thought, for the price, that water and ice might work its way under the frame and bend it, but no visible bends or wear are found.With the right charge controller, you'll get some juice out of these all day. My neighbor has a barn light, and its close enough that I even read an output in the dead of night. Granted, its not enough for the charge controller to bother with. But these are a good purchase.

I have no complaints. Work better than expected. I've seen 17amps of charge coming from 2 panels which is more power than advertised which is not ideal. I overloaded a 20 amp solar controller with 3 panels. These panels should not have been able to overload my controller based on the power specs

Packaged and shipped very well, showed at my door step with no damage. Hooked up to my Eco-Flow Delta and was pulling 85 watts on a single panel on a mostly sunny day. Defiantly designed to be a permeant set and endure the elements. Overall would definitely recommend and buy again to expand my solar system.!

Got one with broken clips and one that does not power. Eco told me to deal with Amazon. Amazon needs all 4 back to replace the 2. But I'm using the other two and I'm over 2 hours from a return point. So, if it's only 50% reliable out of the box, how long do I have to last the other 50%? Not happy. Returns for some people and some things are actual WORK. It takes time and money. I'm not here to TEST your panels, I needed them for a project and I got half what I needed. Unless Eco can fix this, I wouldn't buy their stuff.