How many Plants can you really grow under 400 watt hps?

Any experts on this subject. I've heard hundred watts per plant. my buddie that I talk to online said he grows 30 plants under a 1000 watt with great results.

A 400w covers about a 3x3 area. i have managed 4 uncut 6 ft trees. Now i sog and this run i'am Scrog n. Sog i run mayb 10,growing tree's is'nt much fun anymore,too many leaves and wasted energy. now i concentrate on only bud sites. Running Kalichakra and Blue mystic clones now, the chakra clones 4 exsample grow 3'. i get 1 to 2 oz and hav mayb 10 fan leaves=equals 1 fat bud. I think min is 2,000 lumens :smoking:per sq ft

all I have is 400 mh,and I will do between 9-12 buckets beneath,I usually do 2 plants per bucket,I grow main cola style strains,it works pretty well for me,but you have to do alot of moving of buckets to keep every1 happy.I do a short veg 20 days and flower according to strain.Here is an AK-48 took 83 days from seed.

i wouldnt go anymore then 4 full size plants

all I have is 400 mh,and I will do between 9-12 buckets beneath,I usually do 2 plants per bucket,I grow main cola style strains,it works pretty well for me,but you have to do alot of moving of buckets to keep every1 happy.I do a short veg 20 days and flower according to strain.Here is an AK-48 took 83 days from seed.

That's some nice looking Ganja my friend.

I grow 4 autoflowering strains at once under a 250 watt, DWC. 2 regular sized plants.

-C