Nobody disputes how good cmh is. That's why it does not need bs advertising like the old leds did.
2x315cmh is needed to replace 600hps of equal quality, less than that is a lie or unfair test.
3x315cmh will replace 2x600hps and will easily replace a single 1000W hps.
630 DE cmh will compete with 1000W hps thnx to spectrum. But, 2x315cmh will out perform 630 DE cmh due to better light spread.
3x315cmh will out perform 1000W DE cmh due to better light distribution and the allowance of a wider canopy dimension.
Can you better explain why 1000W DE CMH is better than 3x315cmh and comparable examples. As far as I can figure it isn't, buyer messages and par pics don't help.