These panels are just the right thing if you are charging a 48V battery bank! In that situation, the economics of these panels is just great. This is true because a) you can get by with only buying one or two panels if you're on a budget b) you can add capacity for only $300 a pop c) the wiring costs are reduced since the current is lower and d) the price per watt is very very good... almost as cheap as it gets. This is all due to the fact that the panels put out a relatively high voltage.

Another perk of these panels is that the initial output is quite a bit higher than their nominal rating. My 60W panels are producing close to 75W, or 25% more than their nominal rating. I don't know how long it will take for them to degrade to nominal, but the extra power is great no matter how long it lasts.

This review has votes.