I have two 68W panels on the roof of my 31' RV that connected to a Morning-star Sun saver duo solar controller that charge my House(camper)Battery and the Engine battery at the same time. So far after 9 months they are doing great. Install was a little tricky with running the wires from the roof (used the fridge vent) so I did not drill any holes and I stuck them right on the campers TPO style roof after cleaning it real good. As I said I'm very pleased with the battery charging power these panels produce. I do allot of beach RV camping and so far they have been keeping my batteries charged. "I would however shop around on the internet before you buy because you will most likely find them cheaper if you do your homework."
the CIGS technology is my favorite, but like that, this is also amorphous thin-film. the efficiency rating is slightly less than with crystalline silicon, but who cares about a few percentage points. so less material is needed to produce the panels in this way.
another awesome detail: free voltage from the Sun. well, not 100% free of course, you DO have to purchase the equipment, but once you've spent the money, anything it produces is YOURS. this solar panel along with a 20-amp charge controller (from morningstar), and a 12 volt, 20-aH battery, i am able to store the Sun's energy to be used any way i like. right now i'm using it to charge small electronics and my laptop (using a small 400 watt AC inverter). the limitations in my system are 2-fold: the battery bank needs more amp-hours, and the array needs at least another identical Unisolar 68 watt do-gooder... which means i'm still figuring out what's going to work the best for me, but so far, i'm very pleased with the results.
the phrase, bigger is better is often not true. unless you're talking about piles of money (bigger IS better), or telescope aperture, and photovoltaic wattage. the larger the wattage the more "work" it can do. individually this is a nice little semi-portable (car camping only, no hiking in with this baby) panel... but in a group of two or more i can see how it would really kick ass... can't wait to add another to my array. thank you.
Buy Uni-Solar PVL-68 PowerBond PVL 68 Watt 12 Volt 112-Inch x 15.5-Inch Flexible Solar Panel Now
I've had two panels on my 27' Itasca, for about 2 years now, without a problem of any kind. I highly recommend these panels for RV use due to several factors:they mount by adhesive, securely and easily
they are very shade-tolerant, producing well even when partially in shadow
they are very angle-tolerant, producing almost 50% of capacity even in low sun-angle situations
they produce at 90% even when dusty/dirty
they are very hardy, you can even walk on them
they have virtually no vertical profile, sticking up only about 1/4"
they are totally wind-proof
you never have to adjust or aim them
Absolutely outstanding product.
(Note that the (rare) bad review had to do with rolling the panel up every day. I don't think they're meant to be rolled up repeatedly, since they are designed for permanent roof-top installation. I would not recommend them for portable, roll-up-and-store usage.)I bought just one panel and it works great... even with overcast sky today I measured over 50 watts out... no worry about hurting my back like my other panels with glass and metal frames... they are heavy and awkward to move... this is bigger but is lighter and easy to drag/slide around... now worry about broken glass... I like it.upgraded my system to 3 of these panels. no holes,no brackets,work great.wiring,adapters etc. also available.would buy again but out of roof room on RV
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