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

Great price and they work great. I bought 3 of these (12 panels) and they work as they should hooked up to my Eco Worthy 48V 5000W AIO system. I had them temporarily hooked up just laying flat on the ground when there was a flash flood. Even under water they were working fine and producing power! They were partially or completely under water for 3 days working and producing power as normal. They still worked fine after digging them out of the mud. I now have 4 of the panels hooked to my 12V system and they work great there too.

These solar panels have been put through some harsh temperatures and storms while I cleared my property out to build a cabin and they have worked amazing for 4 months and have been holding up great 👍

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.

Please note that this product requires something called well nuts to connect it to campers, RVs or boats. Also note that well nuts do a terrible job in high winds. Mine blew off during high winds while coming up from Thatcher to Phoenix after an event. My suggestion is to bolt it down to a camper roof rack. I bought one and I bolted it fast to it and that is not coming off. Do not trust well nuts!Other than that, these things work perfectly. I bought this to mount my replacements on. Much sturdier.https://www.amazon.com/dp/B0896XJQN6?ref=ppx_pop_mob_ap_share

Eco-worthy makes fantastic protects. I have now installed 600 watts of their solar on my 1000 watt system, and can honestly say these panels perform excellently. I have tried them independently of my other panels and they all put out above the rated capacity. I charge my batteries up with in a couple of hours now thanks to my solar setup. I do plan on buying two more panels to make my siren 1200 watts total. For the price of these panels you really cannot find anything better.

I bought 4 panels and they only work sometimes . I have them hooked up in series. I have other panels that work great I can't figure out why these only work sometimes.

Whoever reviews these solar panels and doesn't get the correct results for them is not setting them up correctly. These panels meet the specifications 100% or better. A single panel in direct line of sight at the 90° (flat with the sun directly overhead) at a surface temperature of 70-80 degrees will provide 100 watts at 18-22 volts. With 12 panels in a series & parallel configuration to provide 120 volts, I have documented 1,255 watts at 128 volts. Recorded via Victron Smart Controller and Victron shunt. Buy them when on sale, or in bulk. Keep them clean, mount correctly.Eco-worthy U.S. and Amazon should be advising buyers of "sales tax exempt" procedures and inform them that the purchases are "tax exempt" based on the delivery location. In Florida anything basicly related to solar energy is tax exempt but the process required some documentation of sales by the seller and buyers. None of this information is being provided !!

We recently had hurricanes in Florida lucky not much happen where live except the neighbors lost power because our retention pond flooded the road and up our front lawns it flooded theirs on the ground transformer but it didn't flood our on the ground transformer so we didn't lose power.I was lucky but made me think about next season and the fact my wife is recovering from a stroke in bedridden until she gets back use of right side at least her mind ok, slow recovery.But in the past, we been days without power and once 12 days without power but had lots of sun after storm passes.So getting some panels and a Solar power station (EcoFlow Delta 2 Max $950 on sale) that I can run some stuff for her like the TV and Fans and adjustable bed and a few mini fridges until power comes back online.I order first set and got them working with the power station, the power station can take 2 solar inputs so order another 2 set of these.The power station input is 11-60 volt and 15amp max so I can put 2 panel in series with 44 volts 5.5 amp max and then put 2 set of series in parallel for 44 volts 11 amps max I was getting real world 338 watts input to the power station so that like 84% of 400watts rated in full sunlight not bad at all.I only need 1 more set but I bought another smaller power station that only has one solar input because the DEAL on it was too good to pass a 1024ah 1800w output EcoFlow Delta 2 black Friday for $399.So now I have 1200 watts max but really real word more like 1000+ to change my two power stations.1 set of 4 $199, the next 2 sets of 4 $189.They are very well made and sturdy and are package really well, I only had to file down a few spots at the corners that had little sharp edge to it other than that Great Panels.