Newpowa 200W Monocrystalline 200 Watts 12V Solar Panel High Efficiency Mono PV Module Power for RV Marine Boat Cabin or Other Off Grid System
, Newpowa 200W Monocrystalline 200 Watts 12V Solar Panel High Efficiency Mono PV Module Power for RV Marine Boat Cabin or Other Off Grid System, 194.5, USD,
64.57 x 26.57 x 1.38 inches
|Item model number|
|Is Discontinued By Manufacturer|
This Bit of Life –
I bought for of these for a project I’m working on this spring. One panel arrived damaged. The seller quickly responded to my return request asking for pictures. They decided not to have me ship back the damaged panel and provided a refund. Excellent customer service so far! The panels seem to be great quality and during my brief testing seem to perform as advertised. I would have no reservations with recommending these to anyone looking for high quality panels.
Mountain Beaches –
I bought 6 of the 200 watt panels several weeks ago for use on top of our 5th Wheel RV and could not be happier. They arrived within a few days and the the packaging was outstanding. No damage whatsoever. I just installed these so I’ll update this later with details on efficiency but so far so good!
I test a lot of solar cells. These are an excellent value and a recommended buy. So why only 4 stars? Because this, like almost all solar companies, claims a “theoretical, lab-value” wattage, not what they actually produce. Until they start advertising wattages at close to real world conditions, then they will not get 5 stars from me.
Florida, April, Clear sky, noonish, 75 degrees, panels pointed directly at sun (so pretty much real-world ideal)
Epever Triron MPPT 30 amp charger, LiFEPO 175 AH battery about half charged.
Two Newpowa 200watt (claimed) panels tested.
They averaged about 170 watts during my test (varied between 165 and 175 with perfect sun). That’s an 85% actual-to-claimed wattage, which is fairly typical. I saw 11.3 amps (at 15.4 volts) output, which is pretty close to their claimed maximum operating amps of 11.76 (but they claim that at 17v, hence their 200 watt claim).
Keeping all that in mind, I connected both in series and the MPPT charger was pumping a pretty steady 23 amps into my battery at around 13.7 volts – pretty nice for two panels of this size range. The power per square foot comes out pretty comparable to similar panels I’ve tested in lower wattages.
They almost come out to $1 per watt which should be a target for anyone looking for solar panels now. You can get some for slightly less than $1 per watt but then you need to factor in support, reliability, warranty, etc. One of my favorite panels is the RICH SOLAR 50/80/100 Watt 12 Volt ETFE Flexible panel – they reach claimed wattage and are tough and lightweight, though more expensive per watt than glass frame panels because they are flexible (but they are great for extra panels that need to be portable). The BougeRV 170 panels are nice too.
If you don’t know how to test a panel, please don’t post a review about them not delivering power. I highly recommend the Epever Triron MPPT chargers. I have two and will probably buy more.