Was researching the effects of different CRI's on cannabis growing to see if it mattered. Haven't been able to find out if say a light with a 90 CRI rating is better or worse than one at 70 for growing. I've noticed that lower cri's put out more Photosynthetic Photon Flux (PPF) than the higher cri lights. If the plant doesn't care wouldn't the 70 cri grow more than the higher cri lights? Facts please, we all know what opinions are like. My guess is lower cri's are better if they produce more photons but it goes against conventional wisdom.
Here's a link to a nice read on the subject of light and growing. Bet that Utah State professor Bugbee mentioned in the article would know.
Here's a link to a nice read on the subject of light and growing. Bet that Utah State professor Bugbee mentioned in the article would know.