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ive got absolutely no idea mate but have you checked the actual wattage of your lights? 600s are generally about 260-270w and 300s around the 140w mark. cheaper ones are anyway. i made this mistake while trying to figure stuff out at the beginning.

Yeah I'm aware of the actual wattage pull of these lights. My space is 2x2x4 . I might go for a 800w. But I think 600 would be sufficient enough ??? Not sure need more input if 360w actual pull is capable of such results .
 
aw what man your off your head. it breaks me like. end up slavouring down my chin and arguing with myself by the end of it. would rather deap throat a chainsaw than do the amount of trimming i see some guys on here doing.

Lol. I love the whole process . But it's still fairly new to me.
 
is gpw watt not go out the window if you are using a big air con unit ? just a thought.
morning folks :pass:
thats a mighty fine looking cuppa tea you have there pepe.
Good morning everybody :pass:
[HASHTAG]#showyourcuppa[/HASHTAG]
View attachment 777857
New cuppa @archie gemmill

cheers
IMG_3707.JPG

:pighug:
 
in this context, watts are meaningless. 250 watts from what light? T5? Burple Chinese lights? COBs? High end commercial light like Fluence? a light like my Quantum Board at 250 watts at the wall will far, far out perform all the burple lights and many of the commercial ones also. And still, the power of the light is less than half of the equation. genetics, growing medium, organic soil or bottled nutes, brand of nutes, water quality, ph, temperature, RH, and airflow to name a few, can all affect final outcome. I've got a tent packed full of big plants right now. But my lack of experience with plants this size is costing me bud. I'm guessing I'll end up with 12 ounce from the three plants, when I figure 18 ounces is what I would have got with more plant training/defoliation.

on average: ( average not peak )
250 watts T5 : .4 gpw
250 ( true ) watts burple led: .6 gpw
250 watt HPS: .6 gpw

Top quality commercial LED: 1.5 gpw

DIY and commercial COB lighting: 1.4 gpw

But to hit even 1 gpw, everything must be right and stay that way the entire grow

I disagree my friend....ive been pulling .8 - 1gpw(complete power draw with fans included) and making some fairly critical feeding errors from bottom of the barrel blurple LED's(old version mars and popuar grow 100X3w). If i ever manage to pull a crop just right i could definitely see 1.5gwp, maybe even more.
 
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