I was asked; what about 10000k and mixing hid and HP's? You can run 10000k and produce insane resin and get more plump buds, because of the added red in most. We tried a solistek and a plantmax 10000k. The solistek was a very beautiful and well built bulb, but plantmax kicked its tail. Solistek put too much red in theirs and plantmax uses peaks. More red in any hid, the slower the ripening, however they all will do it. Mixing hps and hid I'm no fan of. Why rev? The hps will not only slow down ripening, but the trees closer to the hid will be frostier and more ripe, so your crop isn't evenly ripened. Most who use or have used both, will in private abmitt this. Just thought I'd throw it out, cause we tried it all. I've been asked; what's best way to achieve a little more yield using high blue hid? Simple answer, veg under t5 or fluorescent if you can and then flower under high blue kelvin hid. Hid, makes Sativa's especially, not want to kick out branches until about the 11-13 node and they go to 22 like the human genome. T5 and Flo's, make branches come out faster and that's what you want, in order to proper defoliate those main branches for strength and secondaries to create mass yield and I'm talking 8-10 weeks veg to tailor a bush that will give a few pounds on its own if its oaxacan genetics, like say an hso blue dream, that's definitely lowland oaxacan genetics in there just for visual example. Too many people tried defoliation and done it wrong as I use to and give it a bad name. How did you learn the the technique rev ? From a Mexican boy that I love and we worked together on it, but my boy Armando sealed the deal. I defoliated under a big 600 watt and he defoliated under a t5 and his bushes blowed mine away lol! Armando discovered not only the timing, but also that they will respond better under less light. Boy didn't sleep for two months and pulled and watched. I'd pull leaves under my big 600 and my treed would stunt. He'd pull leaves at the proper time under those t5 and for every leaf he pulled, secondary budsites popped all over. My partner hybrid Bob, had a fit when he seen the boys bush. In ten weeks under 4 bulb 4ft t5, he tailored a 32x32in tree " three of them " that gave over a pound a piece. It was og fire x og master. First time I pulled leaves on his trees, he had a fit. In the end, he helped master a technique that he and I will use forever and can now teach with ease. Love you Armando and ya its me and no way could I have done it without you son and take care of that back, your too young for back problems. See, we all learn from one another. One love, one king, one faith, one nation. Rev.thenatural