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400 watt club...

Che

Active member
Veteran
Hey owm, I would recommend the HPS ballast with a 400w Phillips Ceramic Metal Halide bulb. You will have to keep the bulb a lot farther away but the penetration and spectrum is much better. If your temps rise any, you will want to improve your ventilation though.. how many CFM is that fan you're using?
 
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otherwhitemeat

Che, thanks for responding...My fan is 165 cfm , an Active Air 4". What's the standard for venting a 400?

I like the idea of a 400 as I can probably upgrade the ballast and bulb, but at the same size--shouldn't affect my design.

My concern is obviously cab temps and light bleaching. Is 100/sqft too much?
 

The Uncola

Member
I'm without words-

I'm about to give birth to a cannabis plant- I have one currently breaking the soil now! It is a feminized version of Bubbalicious- I have high hopes. I have a 400 Watt system that has performed very well in the past. I have a good feeling that it will again in the future!!~!
 
Im in a 2x2x4with a 400 and it is wonderful!! thats 100w sqft.

I use an active air 265 pulling through a cool tube 4 feet of duct and then push into my scrubber.

With this set up I run only about 1-2 degrees aobve ambient.

Take a look at my sig.
 

QuantumFizz

New member
I have a 4x4x2' box and a 400w HPS. Is it worth upgrading to a larger light? A 600 or 1000w is on my mind although I'm not sure if 400w is really insufficient in my current box.
 
I have a 4x4x2' box and a 400w HPS. Is it worth upgrading to a larger light? A 600 or 1000w is on my mind although I'm not sure if 400w is really insufficient in my current box.

You could run a 600 in a hood with decent fan installed and do pretty well. Going to bump up my little test bed to a 600 as well.
 

medichron

Member
Hey Everyone, I'm on my first small grow with an HTG Supply 400w HPS for flowering.

Currently I'm on my 3rd week of flower, here's some recent pics:

Cherry Lime
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Trainwreck x Herijuana
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How does everyone think they look for 3 weeks of flower?

Peace,
Medichron
 

pthway4

Member
Hey all my 400 watt bretheren!!! Its been a long time..glad to see things are rolling green here!! Wats up CHE!!!! Doin" it like a pro still I see.....May the Herb gods bless us all!!
 

nuggz4me

Member
hey folks my 1st post..in here, my 1st real attempt at growing, behold my 1st 400....day 38-9, no 38,9,8 meh whatever...I have seen the promised land and it lives in the 400!!! stay safe




 

sero!

Member
hello people!


i´m new to ic mag and the club, my name is sero and this was my 400 watt sog one week before harvest:


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peace :joint:
 

bigjay

Member
very nice sero...i hae often wanted to try a sog but dont want the plant count that it needs. how many did you put under the 400?
 
jnugg- your room looks similar to mine. i assume the tubes coming up from the floor are air intakes.. do you have a fan supplying the fresh air or let it flow naturally.
also running 400w... getting ready to kick off my first sea of green.
 

SuperHemp

Active member
Here is my first 400w HPS grow.. only used CFL's before.
These are C99 F2's, about 36 days in 12/12 now, pics are 5 days old from day 31 (sorry).

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Colas are a bit small they were progressing nicely up to about day 25 or so when they slowed down alot.. pH in soil went too low and i think that's why they're a bit small, last feed was 9.0 ph, runoff about 6.5 or so, so it should be ok now, I'll try to keep ph at 6-7 for the remainder of their life, starting flushing soon.. trics are 50%/50% clear/cloudy now.

Next grow I'll be making better use of the light with SCROG and I'll keep the ph correct thru the grow cycle, it should help yields a fair bit.. making mistakes is good for learning, bad for yield..

Also this bud is a little leafy, i don't know why, but I'll try to find a different pheno, it smells good, but it's not the pineapple pheno.. I'll see how good or bad it is after i cure and smoke it.
 
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