Lightning help

[alimacri]

i can put a 400 w hps with a 600 w mh in the same grow room ? i mean , i`m interested if that will go bad for the plant ?

 

[JJ Bones]

Too many variables to answer your question.

 

[Cultivator]

flower or veg? use them both in veg but u want another hps in flower. u want majority red light in flower u could add couple white cfls to give wider spectrum but if u buy quality hps u wont need them. i use only hps and i get very little stretch. on average ( i grow many plants and many strains so cant be exactly specific) my plants are around 2' high and 2' wide.