Raging Stalk
Active Member
Dam I wish that it would become common practice to use isolated drivers since this would be much easier than having to look up each meanwell driver. Its a pita.
HLG-240H-C2100b I hope is the one you are talking about. 2100ma with 122v (59-119 actual) so to play with Cs, here are some options:
1 cob per driver - 148.4w (about nominal, will do it but not recommended for constant use)
2 cob per driver - 70.3w when run in parallel, 1050ma each
3 cob per driver - 45.9w when run in parallel, 700ma each (common around 50w choice for these chips)
4 cob per driver - 35w, parallel, 540ma (204lm/W, you in the butterzone)
5 cob per driver - 27w, parallel, 420ma (219lm/w)
6 cob per driver - 22.4w parallel, 350ma (231lm/w)
7 cob - 19.2w parallel, 300ma (242lm/W)
Don't be scared off by the stories of thermal runway when wiring in parallel. Since the cob can operate at the max current you could lose all of your cobs but 1 and that one would still work.
You do still have some voltage room if you wanted to add some other cobs or monos but that was outside of your question.
HLG-240H-C2100b I hope is the one you are talking about. 2100ma with 122v (59-119 actual) so to play with Cs, here are some options:
1 cob per driver - 148.4w (about nominal, will do it but not recommended for constant use)
2 cob per driver - 70.3w when run in parallel, 1050ma each
3 cob per driver - 45.9w when run in parallel, 700ma each (common around 50w choice for these chips)
4 cob per driver - 35w, parallel, 540ma (204lm/W, you in the butterzone)
5 cob per driver - 27w, parallel, 420ma (219lm/w)
6 cob per driver - 22.4w parallel, 350ma (231lm/w)
7 cob - 19.2w parallel, 300ma (242lm/W)
Don't be scared off by the stories of thermal runway when wiring in parallel. Since the cob can operate at the max current you could lose all of your cobs but 1 and that one would still work.
You do still have some voltage room if you wanted to add some other cobs or monos but that was outside of your question.
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