"competing for light [under one 400 watt]"

thats totaly bollocks, as long as they are not shading each other, then they are all getting the same amount of light.....but the further away any given bit of plant is from the light souce, the less light it gets,and therefore the less bud.

training and pruning aside, 4 plants under 400watts will yield 4 times more than 1 plant.


if you bump the number of plants up to , say 10, for example....thats where you start running into probs with a small light like a 400watter, not enough power, not enough coverage, thats where LST and SCROG come into play.