a 400w Hps is around 55000 lumen intenisty good for around 3-6 plants
how many plants you got coz you might find there no point in useing 2 x 400w
and its ok
but not for 2 x 400w
Work it like this the bigger room you got the more the lumens get shared
like 1 x 400w = 55000 per a squared meter so having a smaller box the lumens intenisty is better if you havnt got much plants like 4-7 only use 1 Hps
No the more Room you have in your box the the more the lumens are shared
so if we both have the same lights (1 x 400w hps) (55000 lumens)
but you got a bigger box your plants will have less lumens between the plant
ah i think i understand im rather dumb at this moment ha.
Obviously smaller room the more lumens the plants get then.and thats a good thing right?
sorry im a asshole at this stuff haha