400 hps to much for this amount of height

[JackSkellington]

switchin to a spot with 41 inches max height is the 400 to much...alta people have been sayin that thts quite tight...so whats my best bets lightwise?? thnx guys much appreciated i rly need sum help take it easy fellas

 

[Charlie_Citrine]

It is quite tight, but if you have a cooled lamp setup and good ventilation, you could be able to do some good tying down or scrogging and get some real nice yields. You have to figure almost a foot is taken up just with the light, so that leaves you 2+ feet, which is a tight fit. I'd look into a 250 watt if heat buildup might be an issue, and still give good yields and growth.
41 inches max height, what are your other dimensions?

GOod luck.

 

[FreezerBoy]

The following chart is NOT about heat but, gives an idea of how close you can hang intensity wise.



Like Charlie says, reflectors and substrate chew up some degree of space but, this is true regardless of lamp size. Cooling is easy. Dealing with the noise of cooling, that's the problem. If you're growing in a super secret bunker no one else knows of, make all the noise you want. If you're growing in the living room where parents and pastor visit regularly, now we have some work to do.

 

[JackSkellington]

its basically an underground bunker my other dimensions dont really matter haha cuz its like 20 feet by 10 jst the height is short. so alota room to put watever just cant be to tall thnx fer the chart and advice dudesrly i needed that

 

[DiscoBiscuit]

I don't have a 400 but I've read folks keeping theirs a foot above the canopy. Have you considered hanging the bulb vertical? You wouldn't have a space restriction.

 

[FreezerBoy]

D'oh!

We are all victims of our experience. Good suggestion.

 

[Merman]

I've got 22 inches from the top of the pots to the lightshield using a 400W.... Using a 'diffuser' under the bulb to prevent bleaching. Got buds growin' right up to the 4" limit. Gotta have a fully enclosed hood with independent fans for the hood and the cab to keep temps under control in the summer.

 

[JackSkellington]

discobiscuit: vertical?? would that even work haha?? how would they even grow lol have you seen one before??

freezerboy: whats crackn man thnx fer stoppn bye.. so you heard of a vertical grow as well?? does it rly work er wer u jst messn around..

merman: really dude?? whats a diffuser?? and whats the total height of yer grow then if you dnt mind me askin..

...I THINK i might switch to 2 250 wtts downthere maybe then i could even seperate n make a veg n flower cab..maybe make everything go easier what do you guys think??peace guys take it easy

 

[DiscoBiscuit]

discobiscuit: vertical?? would that even work haha?? how would they even grow lol have you seen one before??

It'll work if you get a bulb made for vertical install, allowing you to put plants 360 degrees around the bulb. I guess it might be a little cramped trying to flip that many plants with 4' of headroom. Where's Quazi Modo when you need him? The plants look a little weird but quality is just as good while quantity usually increases.

...I THINK i might switch to 2 250 wtts downthere maybe then i could even seperate n make a veg n flower cab..maybe make everything go easier what do you guys think??peace guys take it easy

A cab might make things easier for you and a 250 can get closer to the canopy. Cabs have ups and downs. Dark periods are easier to maintain but heat and ventilation have to be dealt with.

 

[JackSkellington]

really ?thats wierd dude ill look around for a vertical n see watsup with that...and yea i geuss heat may be a problem but i was also thnkn i cld prob fix that easy?? maybe...n i was thnkn of sogn it or scroggn it...and if i scrogged maybe i could use the second cab as a veg cab n thro sum fluros in there to keep heat down alot so only 1 cab would be the prob??but then again if i sogged it i could use both as flower rooms n probly get much more budskie at a faster pace...idk im stuck...what would you do if you had 2 pick?? scrogsog

 

[FreezerBoy]

Vertical is for real. I'm just a victim of my experience, I hadn't thought to go there.

"Normal" reflectors throw 75% of their light away from the garden and need to be bounced back. In a vertical grow all plants get direct light. A lamp will "work" in the wrong direction but at the cost of longevity. If you go this way, keywords are "Base Up" or "Universal"

 

[Merman]

44" from top to bottom, 2' x 3' canopy

Google this: The Equalizer - Hot Spot Diffuser

* Simply slide this unique product over a mogul base socket on most horizontal burning reflectors to filter & disperse the intense "hot spot" of light directly under an HID lamp.
* With the hot spot diffused, you can hang reflectors closer to the plant canopy while reducing the risk of burning the plants directly under the lamp.
* The revolutionary shape, size and hole patterns were designed using the latest lighting development software.
* The Equalizer™ will aid in improving the uniformity of your fixture by reducing the hot spot below the lamp.

FIXTURES THAT WILL ACCEPT THE EQUALIZER™: MH/HPS: Cool Sun, Cool Sun XL, Econocool, Super Sun® 2, Cool Breeze™ 6, Cool Breeze™ 8, Econowing & Maximizer®,. HPS ONLY: Large Horizontal, Super Spectrum & Yield Master™ 6inch.

FIXTURES THAT WILL NOT ACCEPT THE EQUALIZER™: Super Sun®, SunGro, Yield Master™ 4inch, Yield Master™ 6inch MH, Econo GroV & Lumenmax™.

Best $30.00 I've spent on equipment in years. They make them for 400/600/1000 HPS and MH. Check the link for the Coco E&F SOG for pics.

 

[JackSkellington]

merman: well i gota sungro fer now haha so i geuss thts not an option lol..u travel to all these sites n try to sell these things hahah "a revolutionary" ??lol jst playn..but hey merman hows that coco wrkn you like it as much as soil??

freezerboy: alrite cool i may jst check in on it then and whata ye mean base up er universal?? u lost me man haha

 

[DiscoBiscuit]

really ?thats wierd dude ill look around for a vertical n see watsup with that...and yea i geuss heat may be a problem but i was also thnkn i cld prob fix that easy??

I like the basement idea, I wish I had one. This may be the single best environment (temp wise) in your crib. The only down side might be humidity and mold spores. Ventilation will go a long way to prevent mold IMO. It might be a good idea to check humidity levels for a period of time, especially after a rainy spell. My bud has a basement that stays 70% relative humidity year round.

maybe...n i was thnkn of sogn it or scroggn it...and if i scrogged maybe i could use the second cab as a veg cab n thro sum fluros in there to keep heat down alot so only 1 cab would be the prob??

I'm rockin an NGB, combined temps in one cab gets tricky in summer. I like the idea of two cabs. I'd set them up so one doesn't suck in heat from the other.

but then again if i sogged it i could use both as flower rooms n probly get much more budskie at a faster pace...idk im stuck...what would you do if you had 2 pick?? scrogsog

You could do two cabs with a scrog in each for that matter. Two cabs, two grows, two harvests sounds good to me. If I had your setup I'd section off a space with panda for dark control and hang a vertical 400 in the middle. With panda you could make a round grow space and suck every watt outta that 400. A 5 to 6 foot diameter grow space in-the-round. You could get a lot of plants in there.

IMO, a scrog would work better with a conventional setup (horizontal.) Your reflector captures otherwise lost light and increases lux. A sog works well with a vertical setup cause light gets to more of the plant.

 

[FreezerBoy]

base up er universal??

Lamps come in three types: Horizontal, Base up (aka Vertical) and Universal (either hor or vert)

Lamps will fire in the wrong direction but, at the expense of life span. Believe it or not, it ties in with the Earth's polarity. The lamp is set to arc in a particular direction. Mis-hang the lamp and it still arcs to the "correct" spot, only it can't get there, and there isn't there anymore anyway. So it goes searching for a new home. It will fire but, the lamp that works twice as hard burns half as long.

 

[stke_fingas]

i got a vertical 400w in a cab. cooled with a 6" cooltube and a stanley blower. plants burn only when they touch the glass. i run a vertical scrog screen around the bulb and have WAY more canopy than any other cab design(without a doubt). all growing tips are within 8" of the bulb for maximum yield. i have yet to dial it in but when i do it will be killer.

my old cab(link in sig) yielded well for the space, but i built a new one that is better than my last in every way. i'll take some new pics if you want to see my design, i no longer have a camera so my cell phone is my only option. otherwise i would have posted it already.

 

[JackSkellington]

disco: are you sayin youd do a vertical as well as make the 2 cabs?? lol cuz thtd be sick !!!but im tryin to keep my electricity low so im only thnkn 600 is the top id go 4 now...but i may get 2 250s n jst hold on my 400 n see wat happens down the road ...but i still really dont know yet im tryin to get all possible ideas in my headbut thnx fer info mayn you helped me out a bunch k+

freezerboy: ohhh i see damn that blows...how much sooner does it crap out on you?? i may be thnkn bout the vert n i gta consider everythng lol thnx fer all the info freezer you the man k+

sticky: yea feel free to post em up mayn im looking for all ideasand that snds prty tightk+

 

[FreezerBoy]

freezerboy: ohhh i see damn that blows...how much sooner does it crap out on you??

I'm unaware of an actual formula. This is something that came up in the CMH thread. When I first heard about the earth's polarity , I though bull, but ... it's real. There's a point it all becomes voodoo to me and I'm now past that point.

 

[turdbird]

That 400w vertical cabinet sounds interesting. How many plants do you use and do you train them much or top them or anything? I think there was a guy named fish on og that grew 70w horizontal tunnels of bud. I made a 70w and then a 150w version and had success with both. I would like to try a 400w horizontal cylinder someday. I think a 3 foot diameter screen 3 feet long would work good. I think the plants would be around 3.5 feet tall when I would go to 12/12. I tried a 150w vertical grow with 8 clones but it didn't fill the screen like I had hoped. I didn't top them or do any training though. Also the genetics weren't as good as my horizontal grows. Anyway, my next grow will probably be 400w with a cylindrical screen. I'm not sure if it will be horizontal or vertical. Probably horizontal because I think it will be easier to train and get the screen filled.

 

[JackSkellington]

freezer/sticky: lol yea man earths polarity does sound like a bunvha crap...but then again i wlda never thgt sun could cause cancer but hey then stke you grow vert.. you ever grow horiz?? n if so how much less does the vert 1 last??

turd: thnks fer stoppn by buddy n yea i thnk horiz would be probably easier even tho idk since i havnt grown vert..but it def sounds....interesting to say the leastn knowing what freezer jst informed me about if i was you id def go horiz..

take it easy guysback 2 the bowl

p.s. i decided 2 get 2 cabs n thro sum 250s in thm it snds like the best way to go..of course i gta save a lil cash first(lost my job) but def snds like the way to go...but .....im also saving my 400 to do a vert down the road just for fun...you never kno what you might fall in love with