Growmau5
Well-Known Member
This is such a broad question. Firstly, idk if you are talking about 2530,2540,3050,3070,3590....the list goes on. All the lumen performance numbers are listed in PDFs, by simply googling the cob you are interested in. Cree provides PDFs for all the info you are looking for, with respect to lumens. Also, there are spreadsheets around here that will break it down based on drive current. Search"cob efficiency spreadsheet" to find that thread.how many L/w are cree cxa and cxb cobs using them at 50w & 23 watts?
whats the least amount of cobs to have to compete with a 600w & 1000 hps?
For the second question, based on my experience with 3070 @ 1400ma around 400w led is roughly equivalent (or better) to a 600w hps.