T12s are good even through vegging. I wouldn't use linear fluorescents myself, ESPECIALLY T8/T5's, because they're most efficient at higher temperatures, to a point where a cannabis plant would die. Use the T12's for seedlings, and then add the 125W CFL bulb in once they start vegging.
WeayLay Reviewed by WeayLay on . t-5 t-8 and t-12 Lighting Discussion Hey Guys, I Have three different lighting setups and i am trying to figure out how to use them. In my Grow Tent I have a 600w HPS Light. This tent will eventually become just My Flowering tent. I also have Hydrofarm Flourowing 125w CFL 5600k Light that i am using for germination and Veg Growth. And I recently aquired 2 48" t-12 Bulbs that are Growing bulbs. I know t-8 and t-5 are both better. but this being my first grow my money is limited. I have read that basically all the t-12 Rating: 5