New Grower what kind of t12 for extra lighting?

[whaleballs]

Maybe someone can help me,I have a 400w metal halide and a 400 w hps and one ballast .I also have two 48" t12 ballasts for extra light.what color spectrum do I want ? High or low kelvins?I was gonna start with the mh for the first few weeks and then switch to hps but I will run the t12s the whole time.

 

[Torched]

T12 are not strong enough for much more than starting seedlings and if really close supplemental lighting. The Low kelivin 2700k are red for bloom and the 6400k are white/blue for veg. Alot of people use both colors when they are using florescents.

 

[oldster]

Hi Whaleballs,

As Torched indicated, I would use a mix. More 6500K during veg and more 2700k during bloom

 

[whaleballs]

Thanks for the response .I guess the bulbs are cheap enough I can run the hi kelvin with the mh at the start and then when I switch to the high pressure sodium I can put on some low calvin fluorescent bulbs.I just want to get as much light on them as I can.I will be able to get them in close.I already have the the ballasts for those lights.I'll give it a shot.