I had all the parts laying around so I thought wth. Unfortunately this Chinese 50w cob gets too hot. Next plan is to put in a Cree cob of sorts. Also I couldn't find a good way to ground it, so back to the drawing board.
Using ebay cob for house plants (failed)
I seen some par readings on those large rectangle cobs, they seems to do alright if not driven hard.
Some more research on the "mains" cob I have and it appears to have temperature limiting. No issues yet (close eye on it).
Some more research on the "mains" cob I have and it appears to have temperature limiting. No issues yet (close eye on it).