Temperature: Difference between t5 - t8 or t12?

[cigarettes42]

I have experience with t5 but never with t8 or t12 for veg cycles. My question is what floro runs at a cooler temp (not in spectum!)? I just want a cooler bulb cause I'm ending up putting my mother room in my veg room. I'm trying to do everything green for the environment and want to be energy efficient.

cigarettes42 Reviewed by cigarettes42 on 08-19-2009. Temperature: Difference between t5 - t8 or t12? I have experience with t5 but never with t8 or t12 for veg cycles. My question is what floro runs at a cooler temp (not in spectum!)? I just want a cooler bulb cause I'm ending up putting my mother room in my veg room. I'm trying to do everything green for the environment and want to be energy efficient. Rating: 5

[Dutch Pimp]

I have no experience with T5 or T8's...but T-12's..(6500k) are cool to the touch. Seedling leaves can touch the bulb...no problem.

I use T-12's the first 3 weeks....and keep it within 2 inches of leaves....(I had to raise it for the pic)...imp:

[NatureLover]

I'm using two t-12 ballasts right now, and I've used the t-8.

Used cool white bulbs only in the t-8 with disappointing results. I'm using one full spectrum (but heavy on the cool white) daytime bulb in each t-12 ballast, and one full spectrum (heavier on the warm red) sunlight bulb. The t-12's with two types of full spectrum bulbs in each ballast are blowing the t-8 away. Will definitely use the t-12 again next time. Growth is fast and healthy.