I have both 630w of CMH (2 x315w) and a 600w single-ended HPS. In my experience:
HPS beats CMH for bud size, bud to leaf ratio and yield. Quality/potency is fantastic as long as heat is not an issue.
CMH beats HPS for visible resin, especially on the leaves. Buds are smaller and leafier but with better terps, partly because the room runs cooler and partly due to more blue/UV light. Potency is on par with HPS.
My flower room has 3780w of CMH. it crushed anything I ever got with hps. I don't get any of those issues you get .. Never seen any Calyx to leaf issues even with a 630 in my test tent. I wouldn't have swapped out from hps had I not had better results. HPS wont make these any bigger. CMH is vastly more efficient then HPS. This is just 1. All plants are yielding great.
The new ones and have cost about 500 to build for 4 boards with heat sinks, frame, driver and wire. Kind pricey on the front end but I'll never have to buy bulb so that along with power and cooling savings I'm making money back already.
It was hard for me to wrap my head around it at first but I think I got it now.
Hammer if "YOU" want I will give you the ceo's personal phone number so you can ask questions directly from the designer. He will also cut the price a bit maybe for someone like yourself that can help give positive exposure.
PM that info. Email if u have his as well
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