ECO-WORTHY400W Bifacial Solar Panel 2pcs 195 Watt 12 Volt Monocrystalline Solar Panel Module Off Grid PV Power for Home, Camping, Boat, Shed Farm, RV

It is important to me that when making an Investment like this, every panel has a serial number and temperature coefficients either in a manual or on the panel. This has both.These panels perform very well when all factors are taken into account. Those factors are how much w/m you are receiving, air temp, humidity and atmospheric interference that blocks the sunlight that gets to the panel. All weather center and almost all irradiation meters use the full light spectrum light brightness meter and calculate watts/meter.I bought 4 of these panels, data logged their performance them over the past 2 days and based on my data, they are indeed 195 watt panels.With 850 w/m reading, 50% humidity and 41c cell temp, I'm seeing between 150 to 155 watts.Considering the cells are rated at -0.5% per c over 25c and max watts at 25c is 165 watts in 850 w/m sunlight, 150-155 watts is well within specifications. This is while sitting on a rack at 15%, facing south in Florida.The only negative I see is they are only warrantied for 2 years vs 10 from others but at this price point, you can't beat this if you can put them in a location to take advantage of the bi-facial feature.Overall, I am very happy with these panels.

I just received 6 @195 Watt Eco Worthy Biofacal Solar Panels and just put 3 of them @36 volts them on the picnic benches and cynider blocks I use for my garden see the tomato p!ants shading just a little of the corner of a panel its noon Central California and My Reno!ogy Mppt Charge Controller is reading 57 plus Volts and11 plus Amps so these are right on in there and over. It September 6,2024 12:30 Pm .September 7,2024 install the other 3 @195 Watts Eco Worthy New Biofacial solar panels and just put them on the picnic table No tilt or anything and the reading on my Renolgy Mppt Charge Controllers for all 6 @ 195 @ 36 Volts is 52 plus Volts and 23.42 Amps. With a 10 guage 50 ft run.to my shed.... I did have existing 2 eco worthy solar panels @160&165 Watts and 1new power 165 @_36 Volts I bought these eco worthy biofacial to replaced 10 years old and my original solar panels came with a starter set and got me started. One had brown spots and lost amps. I needed to replace.I'll have to adjust all of them in a couple weeks Winter Sun goes lower, as I do 2-3 times a year as the sun rotates . I spray water and clean these every couple days Dust and Birds they get dirty pretty quickly and reduce watts and amps.I have 2 other Brands as you can see my poor man solar ground mounts and different brands and mixed watts and have 3 @ 40 Amp Renolgy Mppt Charge Controllers.The readings on the other solar panels:HQST 3 @190 watts 36 volts : 49 plus Volts 13.47 Amps 10 guage wire 30 ft run that's 90.03 watts over ratings.2 Rich Solar@170 watts and 1 HQST @175 watts 36 Volts 50 plus Volts 12.23 Amps 8 gauge wire 30 ft run,that's 96.3 watts over ratings.All Charging my Over 20.48 KWH 20 Weize LifePro4 Batteries. I have 5 @ 200 Ah @24 Volts Powering My House.I might add that the solar powers the house all day with the sunlight and Batteries power the house all night and cloudy raining days.So the solar panels are powering my house and refilling my batteries for tonight.Batteries are full early and I extra Power to use and fill more batteries for storage. I will Never have to buy another solar panel again.UPDATE: 9/26/24 - 11:45 Am Just Leaned All 6 @195 @36 Volts up on Metal Fence Stakes 8 Guage 40 Amp solar wire 30 foot run and my 40 Amp Mppt Renolgy Charge Controller is reading 30 Amps @ 54 Plus Volts 80 degrees today and 98 degrees yesterday same reading that's 1620 Watts and new 6 @195 Watt is 1170 so that's 450 watts above rating and 186.6 for the other 6 combined. It says stand them up and Leave 3-5 inches between them get reflection and added watts. Leaning on those fence stakes i can piviot them any which way i want at any time. Look them up on the Internet. Used In Solar Farms and as borders, dividers and everything else. This is my backyard Small Cabin, RV system I use first and PGE as my backup system and it's all portable I can take a couple batteries and panels camping or anything else. anand always Emergency Prepared. No Blackouts and Build as I can afford. And adjust all season. All My Solar Panels and equipment are Good and I'm happy with All of them. I'm located Fresno Madera California Sunny California Country.UPDATE 11/9/24 I do suggest standing these biofacial solar panels Up I've been playing with them and today still getting high reading off of these more standing them up a little leaning on these fence stakes. The wind has come up and blown them down and no damage to them at all. I have now zip tied them to the fence stakes so they stay on windy days.which is easy enough to do.

These charge my 300ah battery pretty quickly on a sunny day and generally get to 80% on a rainy day. These 4 often outperform my 27 390w panels on bad solar days (per rating). Up until recently I've been pretty lucky in regards to shipping damage, they have glass that can shatter, maybe wear gloves when opening.

At this price point, these panels produce close to realistic wattages (80-95% of stated watts) for my system, location, time of year and weather conditions.I am overall happy with the panels, I ordered 2 sets (780w) in July to get up and running and charging 2-150 amp hr Ecoworty batteries @ 12 volts, and 2 more panel sets (another 780w) in October. That being said with a 3000 w inverter, running a 16 cf refrigerator (120 w draw) garage door opener, and 3 power tool battery chargers and a forced air propane furnace (garage heater) occasionally used, since July totally off grid, finally after 4 days on cloudy days I had to charge the battery's up with an lipo4 20 amp charger on grid, now I have set up an super off peak timer to keep them topped off during the night.Back to the panelsGood: good bang for the buck, if you can DIY and have some electrical understand, do your research on panel angle and season changes.Also quick shipping.The bad : I hate to mention it, but its happened to me twice this last 2 orders has arrived damaged with shattered broken panels, maybe a new UPS driver ? ... anyways Amazon has made it right with returns and refunds.

Got 4 of these solar panels installed on my truck camper. Went up like it was meant to be. Very affordable option, and well built.

I plugged these (both of them together) into my Ecoflow Delta Pro generator on a sunny day and left it to charge from sunrise until sunset and it only charged the generator about 2% after an entire day. I know solar charging is the slowest way to charge, but I wouldn't buy these again if I knew it was that slow. I didn't look at the generator while the panels were at peak charging, but I don't think they are really 400w combined. I'm now looking for two panels that are 600-700 watts each that are highly tested and rated well.

The product is working the way it should. Been off the grid for a month and loving not paying the electric company. Really need to read the instructions carefully and look at the diagrams. Especially the color of the wires and connections. Tech support is very informative. Definitely recommend getting a solar system and not having to pay thousands for someone to install it.