whats the difference between t5 and t8 (besides size). t5 seems to be 2-3X the cost per bulb.

but hps is great to flower under. you want roughly 60-100w worth per plant if your growing em big i believe. (a 600w will run 6-9 plants)
hybridlove420 Reviewed by hybridlove420 on . Need help deciding on HPS or t5 I am going to upgrade my system soon and I am considering my options. 1. Go with two 432w, 8 lamp, t5 system that puts out 40,000 lumens for each 2 plants. 2. Go with a single t5 8 lamp system for each 2 plants for veg and a 600w hps that puts out 95,000 lumens for each 2 plants during flowering. I am going to try a rough KBS grow with co2, using 5 gallon buckets in a 15 gallon recirculating uv system. I am just wondering, I have got some great results (or so I think) using just Rating: 5