its fine to do this,as far as not shedding enough light 2 the lower branches i say screw it your biggest yield will be derived from your main colas anyways.its safe but i would say 85 is a little warm.personally i would keep them just a few inches from the top of the canopy and that will also encourage them to continue growing in heigth because they still have somethng to try and reach 2.
disrupt86 Reviewed by disrupt86 on . Never Too Much Light Situation: I have a few 400wt hps in my flower room. They are enclosed and cooled. A person can touch the glass and are moderately warm to the touch. Question: As long as there is no heat coming off of the glass, is it safe to let the ladies grow right up to the glass? This would put them roughly 4inches away from the actual bulb where they'll be getting a wonderful amount of light, cool to the touch even. I had read in Jorge's book that you can never have too much light. In my Rating: 5