I was perfectly happy vegging my plants under cool white t12 tubes until they were about 6 inches tall.
stinkyattic Reviewed by stinkyattic on . T- 12 Light Question Hey All,, Just picked up three T-12 complete light set ups from a friend for free and was wondering if they would be any good for Veg. they have 4 bulbs in the reflectors and all.. Can we put T-8 Lights in them or just able to use T-12 lights in them?? The ballasts inside has no writing on them to tell if they r t-8 or T-12 ballasts.. The lights with them has T-12 on the bulbs and we was going to use them for Veg. Jamie Rating: 5