do you have one of those old car battery chargers? you know, crappy metal box, big heavy transformer inside? i WANT YOUR DIODES from it. i mean, if you’re not using them of course. the V rating might be low for my 45-50V panel feeds, but the current should be sufficient. bonus: already attached to heat sink (needed when one is in shadow and the other in sun). will test 4 rolls at once soon.