2 lights 1 ballast?

[sgtsmoke]

this is prob a stupid question but can i run 2 400w mh light off of one ballast?

[Hick]

sarge..."only" if you run 1 at a time.

[sgtsmoke]

ok thx hick.i had another bulb hanging out and wanted to use it.i didnt think i chould do it but wanted to find out first.have you ever grown nlxbb before?
i have 6going now and 2 have yellow crispy leaves on the bottom.and the other4 are doing good.no ferts yet just water.my soil is scotts brand
my ph is a little high almost 7.they are almost 3 weeks old i also have a plant from a good bag of weed and the other tall one if from an indoor mix i got from gypsy.they are 5 weeks today.same soil,

the 2 plants are one of the little pots close to us and the other is last one top row close to the fan

[sgtsmoke]

the 3 in the cups are more bag seed .my fans quit in my veg box and it got super hot in there.tryin to bring them back

[W ï l l]

Two bulbs can indeed be run on one ballast...

that is....as long as it's a dual ballast.

8515

[Dr.GreenThumb]

Two bulbs can indeed be run on one ballast...

that is....as long as it's a dual ballast.

8515

Buddy of mine has a dual socket switchable digital ballast. To much $$$ for my blood !!