Quote Originally Posted by smoknjoe
Light waves that combine can double their amplitude or cancel it out, or anywhere in between. All electromagnetic waves are subject to interference.
I'm not sure, but I think you're wrong.

I think you're refering to the "double slit experiment".

Two EM waves (electromagnetic) can't be added together to create a greater amplitude.

By the same token, they don't "interfere" with each other, and create "interference patterns".
turtle420 Reviewed by turtle420 on . 400 MH and 400 HPS at the same time? Hey everyone, I've been lookin up on this and i can't find the exact answer for my situation. I'm growing in a small growbox in my crawl space, and i just purchased one 400 watt MH Sunsytem 5 econogrow and another 400 watt HPS Sunsystem 5. I got glass for both of them and i plan on ventilating the shit out of them so i can keep them as close as possible. I was thinking if i angled the lights towards eachother so the spectrums "criss cross", I could have both reach the plants and have an Rating: 5