So what would be the honest effective area of a 1200? I didnt expect it to cover the entire tent, its to add more later. I want a set up like docs with a tray. One light is about all i care about spending on lighting at the moment.
I'm currently using 2 1200's over a 3x6 tray. I can without hesitation recommend a single 1200 over the same space probably with better results. Also, the DormGrow G8600's worked well in tandem over this same tray.
Two of them is so damn much light the plants can barely keep up and that's with rich, high brix soil, Co2 enrichment and a perfect environment.
For a 4x8 I'd use 2 1200's or perhaps 3 600's
Keep in mind, I'm still trying to overcome years of bias towards LED and their outrageous claims in the past about such nonsense like a 90 watt light replacing a 600watt HPS, etc.
Things have changed. These lights really do perform.