Quote Originally Posted by mrnobody
Plants use everything they can.
Exactly. Read what you just wrote. "Plants use every thing they CAN." MJ plants can NOT use a great deal of the yellow, orange or green spectra (although, yes, as you stated they use everything they CAN within those spectra). So there is no need to flood the grow room with vast quantities of spectra that they can NOT use. Doing so is simply inefficient. An efficient grow light will produce appropriate quantities of light within the spectra that the plant CAN use.

I'm not sure why you insist on arguing this point unless it is to give props to plasma technology which, judging from the article you posted, claims to produce vast quantities of light across all spectra. If those lights are proven and if they are produced at costs and efficiencies that are accessible, then great; we'll all be using them in a few years. Until then, those of us concerned with heat and other efficiencies will look elsewhere. Unless you have specs on a plasma light that you would like to share?

Based on the literature, I'm doubtful that such a light exists, yet. Take a look at the website of the company that aims to bring this technology to market (as cited in the article you posted) - PLASMA INTERNATIONAL - PLASMA LIGHT SYSTEMS. You will see that they have not yet reach the point of mass production. You will also learn that their grow results were achieved by manipulating the spectra coming out of the light with filters and by deploying supplemental lighting. Certainly promising and worth keeping an eye on but not yet ready for prime time.