MIMedGrower
- 17,190
- 438
This is a result of improving the spectrum spread ( and photoactive power a.k.a. DLI during the light period reference: https://en.wikipedia.org/wiki/Daily_light_integral ) and improving the missing or weak wavelengths produced by HPS lamp technology. Review the spectrum charts for the bulbs used and (mentally) overlay them.
Recall that CMH was originally designed for showrooms to ensure accurate color rendition in large indoor spaces. We are lucky to have them as an option - I think many will find they reduce overall costs from all I see reported. Great light, reduced heat load. I also hear the footprint disappoints. The one thing I have not heard much about: Are overall health and disease problems less? Besides the apparent quicker finish... any potency test results anyone could share?
(warning: not responsible for rogue wikipedia bots)
Yup. All those reasons are why I didn't just get a 400w hps for the available space I had to upgrade.
And there is a YouTube pair of vids with a John and I can't remember his last name. He is a commercial medical grower and compares hps, cmh and led very fairly. The first vid is a bunch of discussion and opinion. But the second is him with a gas chromatograph that shows a 4% THC increase under only the cmh.
Sorry I don't have the link handy. I will search when I have more time.