Wanted to track this one from start to finish in bloom. I vegged with hortilux power veg bulbs, 4xuv white and 4xblue spectrum veg420. Bulbs are pretty pricy for these t5's and honestly wish the bloom room had some better light quality however that's soon to come early next year will be switching to cmh @DemonTrich. I'm blooming with 4x300w mars hydro, been using these lights for a year now, you just gotta use them correctly and you can get some fire quality. Cali connection has some reviews out there with hermie issues and yes I've had my issues with my first Larry bean that were advertised as FEM, ended up being a male. Guess it was a sign because the next bean I popped ended up being a serious packer. I'll post a shot of my 6 week Larry vs the new addition Larry that entered a couple days ago. These T5's brought out some serious stacking and I'm very happy to have power veg gear.