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  1. C

    Can a 630 watt CMH match a 1000 watt HPS?

    All the info I've seen a 630 cmh does indeed perform as well as a SE hps. It has a umol/j output better than any hps. The same way these cob LEDs replace 1k lights at 600w or so, the CMH is also a much more efficient light. These new CMH are NOTHING like the old 400 watt ones. Again the umol/j...
  2. C

    Venting my portable AC?

    there isnt a more efficient way thats not alot more money. i find new portables at home depot work far better than grow room specific ones tho
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