First, some groundwork..... Since flowering takes more time and more room than vegging, I always seem to find myself overcrowded and undertimed on my flowering space. I don't really have the room to do what I want (add a flowering room) so I am trying something a little different. I generally flower in a 4x4 room with a 1000w HPS. For this experiment, I am using one of my 3x5 vegging tents with a 10 bulb T5 light in it. From the posts I have read, the down side to flowering with T5 is... A. Added stretch (less penetration) B. Fluffier (and smaller) buds. Generally, less yield. OK, now to my situation.... My flower room is full and won't have room available for 4 to 5 weeks. My veg tent has Satori that are almost 12 weeks old already and are still in veg (this wouldn't normally be possible but this pheno of Satori is REALLY short). Anyway, the plants are ready to flower and I won't have room for another 4 to 5 weeks. My solution...... Rather than let these veg for 4 to 5 more weeks, I swapped out bulbs to a 25k bulb (Kudos to HTG service and shipping) and set the timer to 12/12. In about 4 to 5 weeks, I'll be able to put these in the flower room with the 1000w HPS. However, for the first half of the flowering cycle they will be getting only 360w (8x45w bulbs [I think these are 45w aren't they?]) vs the 1000w HPS I normally use. You're opinion..... So, what do you think? I am saving 5 weeks in overall turnover. The first 2 weeks of the 12/12 cycle are spent stretching and changing chemistry. I'm not so sure a little less light will make a big difference during that time. Buds really start to pack it on after 3 or 4 weeks. That, would seem to me, to be the time that you want the maximum light. I definitely am going to loose a little yield. I can live with that. It's worth the time savings for me. And, I wonder just how much difference the lessor light will make for that first half of the flowering period. Just tossing it out.