Ok my panels have come 4 Sharp ND-208U1. In the manual it said to cover the surface of the modue with cloth to isolate the module from incident light.
Is this common practice?
Thanks

i answered this on wind-sun, but you will probably get the same answer here. i am curious as to where it is you got them and for how much. what configuration are you using them in, controller, and battery arrangements also out of curiousity?

My batteries are hooked up to 24 volt, I have a Mx 60, panels wired at 48 volts, I got the panels (Sharp ND-208U1) at Mr. Solar at $950.00 each, it wasn't so much the cost of the panels that made me go there as was the shipping cost of only $120.00, where the other places more west of me was $300.00 plus. Being in Maine it's costly on shipping up here. Thanks

yes most of the dealers are out west with a few here in the east and that limits our choices unless we pay for higher s/h costs. shipping from mr. solar to me here in pittsburgh is fairly cheap. i have dealt with mr. solar before and you have to watch out for order screwups. granted it may be different now, but i ordered twice and brent screwed up my order twice a few years back.