Sorry, should have clarified on a few things. The space I'm working with is a 5x5 tent. It will have good ventilation and be able to keep cool with ac, but I'd like to stick with led. I'm looking at a 680 from the wall sonofarm bar light. Its a massive light that can flower a 5x5 and has a pretty evenly spread par. And 5 year warranty. It seems to be a really good light but doesn't have any reviews so it may not stay on my shopping list if it turns out to be garbage. My question is leaning more towards mixing a couple qbs and blurples equaling 800+ watts vs 1 really big quality light at 680 watts for the same price..