400 or 600 HPS?

lorenzo08

Well-Known Member
I have an area of about 4x5 feet with a 4 foot ceiling. if I move my plants right from the cloner into the flowering stage to keep them short, I think I should have enough room. my question, should I get a 400 watt HPS or invest the little extra money into a 600 watt HPS to get tighter buds? or.. is this a bad idea with the low ceiling and will more likely just burn the plants?
 

MojGniew

Well-Known Member
I disagree I was told the same thing. BUT The problem your going to have is overheating. I have a similiar grow space. My temps are way high with my 600w hps/mh. I now have to buy a air cooler. If I could go back I would have saved some money and got the 400w.
 

gangjababy

Well-Known Member
well, a 600 hps is the most efficient in terms of lumens per watts. Of the top of my head a 400 watt is 55,000 lumens and a 600 watt puts out 95,000 lumens. You should be fine with height as long as you keep your veg time short.
 

lorenzo08

Well-Known Member
I disagree I was told the same thing. BUT The problem your going to have is overheating. I have a similiar grow space. My temps are way high with my 600w hps/mh. I now have to buy a air cooler. If I could go back I would have saved some money and got the 400w.

I definitely want to air cool the light with a separate fan. just hoping it all doesn't cost to much. what kind of price do you think I'm looking at for a 600 watt lamp, reflector, ballast, and cool tube?
 

Trawe

Active Member
i have a larger area (you can see my journal in the sig) with a 600 HPS and i would imagine a space as yours would get fucking hot as HELL with a 600, possibly a 400 too. Be careful!

Other than that, I really like my 600 a lot. The plants sure do too!
 

MojGniew

Well-Known Member
I got my 600w HPS, Digital Ballast, and hood. for 210. with shipping included. check out ebay :)

Happy shopping
 

lorenzo08

Well-Known Member
I got my 600w HPS, Digital Ballast, and hood. for 210. with shipping included. check out ebay :)

wow, really amazing! I'm looking at $300-$500 for a HPS system at a grow shop. I would buy off ebay, but I'm just being really overly cautious, not taking any chances at all. I'll be paying the extra hundred or 2 to keep my purchase private.
 
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