Our original RE system was 4, then expanded to 6 - 50 watt Arco panels. I kept this one and sold the other, but they all still produced power. It's amazing that you can get this kind of performance in somthing the size of maybe two decks of cards.
Interesting story here on the purchase -
I had tried to find a US dealer, and also tried Amazon and a number of off-grid suppliers I knew; no luck. I emailed the company directly, and to my surprise got a response the next day. They didn't know of any US suppliers. But, the same night I found it on eBay, with the matching computer/meter, so I took a chance and ordered it.
Shortly I received an email from "Charlie" saying he mailed it out Monday (it was Tuesday), and I should see it in 5-10 working days...and to contact him if it went past that date. He included a picture of the label, and to my surprise it was leaving from Auckland. The following Monday it was on my doorstep.
I wasn't feeling very "green" in my purchase, though a friend has suggested the plane would have flown with, or without my (190g) package. Anyway, they say it's a small world. I guess so, huh.
The DC outlets are just automotive lighter plugs mounted in blank cover plates that I bored to receive them. When we built our house I could find much else. Folks were recommending plug and receptacles with a blade pattern different than 120VAC, but these were heavy and expensive. Today I'd probably use mostly USB plugs which are readily available, but these work fine for lights and they are fused on the mail plug.