Need Help!!! 400w HPS

rippin8005srh

Active Member
So I've fucked my last plant up and it died, I had 2 cheap grow lights from wal-mart. on a og seed. So since it died and in about 2-3 weeks i should be getting money so Ive decided to get can get my new light. Ive been looking into a 400w hps/mh don't have much cooling but was thinking about getting either just putting a fan on, or getting a cheap portable air conditioner and a fan to circulate it. I cant vent it anywhere, i rent the house, the owner is cool as long as i have my med license(which had before i moved in) and i dont put any big holes into the wall. Im gonna have 2-4 plants. So i have a few questions i need help with.

Will the air situation be alright for the 400w hps?

Where is a good 400w hps under $200?

Would like a kit that had a 400w MH, or are these pretty cheap?

which nutriants should I get?
 

timsatx1

Well-Known Member
Fox farm nutes. Get a portable ac unit. Htg supply should have good lights. Read read read. Happy growing.
 

timsatx1

Well-Known Member
Plant difference? I grow six plants very well with a 400 watt. Mh hps conversion light. I don't understand the question.
 

jeb5304

Well-Known Member
So I've fucked my last plant up and it died, I had 2 cheap grow lights from wal-mart. on a og seed. So since it died and in about 2-3 weeks i should be getting money so Ive decided to get can get my new light. Ive been looking into a 400w hps/mh don't have much cooling but was thinking about getting either just putting a fan on, or getting a cheap portable air conditioner and a fan to circulate it. I cant vent it anywhere, i rent the house, the owner is cool as long as i have my med license(which had before i moved in) and i dont put any big holes into the wall. Im gonna have 2-4 plants. So i have a few questions i need help with.

Will the air situation be alright for the 400w hps?

Where is a good 400w hps under $200?

Would like a kit that had a 400w MH, or are these pretty cheap?

which nutriants should I get?
what size is your grow box or area and what do you have for ventilation now? intake/outtake. try this for a light. http://cgi.ebay.com/Econo-Hydroponic-400-Watt-HPS-Metal-Halide-Grow-Light_W0QQitemZ110420018485QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item19b58bc535&_trksid=p3911.c0.m14 nice light for price. ballast is new just in an old case. no prob tho works great. ballast has spot where you can mount a comp. fan easily to keep that cool.it also has mh conversion bulb too. thow in a spare hps bulb. just in case. about 30$ http://cgi.ebay.com/NEW-400-WATT-HYDROPONIC-HPS-HIGH-OUTPUT-GROW-BULB_W0QQitemZ270449911662QQcmdZViewItemQQptZLH_DefaultDomain_2?hash=item3ef812276e&_trksid=p3286.c0.m14 .total price and shipping + small chain and hooks from hardware store to easily hang. 175$
here is a nice nute kit a lil of everything 35$ total i just buy 2 at a time. i like technaflora nutes good stuff http://www.4hydro.com/nutrients/bcrecipe.asp
 

TechnoMage

Well-Known Member
There's another reason to go with an air cooled hood. You can keep the plant much closer to the top of the plants so the get more light. Light drops off over distance.

The graph from CaliGrower below might make it more clear.
 
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