Ok I bought ho-t5's 48x24 8 bulb puts out 40,000 lumens. I have 6500k's for veg. I also have 400 watt hps for flowering. My question is why couldnt I use the t5's with 3000k bulbs and get the same result. I can fit Two T5 fixtures into a 4X4 area giving me 80,000 lumens verses 45,000 lumens from one 400 watt hps that covers 4x4 area. They say the buds are fluffy and yeald less with flo's but lumen-lumen I about double running the t5's plus less heat! Am I thinking in the right direction??? It would be nice not running the a/c 24/7..