I have a T8 fixture with 2, four foot fluorescent grow light tubes in them. (Not sure of wattage or brand) I have it hanging around 8 to 6 inches above my 2 phals & pah. delenatii. Is this sufficient light for them to bloom?
I have bloomed Phals numerous times consistantly in a east facing window shaded by many tree limbs so for the phals unless they are a very tricky high light one yes ...the paph not sure but probably not a problem
I bloom delenatii and phals under the 1 T8 I still have. You'll have to move them when they spike, The bloom will blast if it stays in contact with the bulbs. You should have no problems as far as light goes.