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"would a ventilation set up such as that work for a 430 HPS bulb?"
If it would work with
660 watts of CFL it will be overkill with
430 watts HPS bulb (400 watt ballast).
****!!
CFL (tubes, HO, whatever) put out
more heat per watt than
HPS/MH ****!!
Hard to get one's head around - the CFL bulb will be cooler to touch per square inch, but there are so many more square inches that much more heat will be released, inside your cab, than with HPS/MH. High Intensity Discharge lights like HPS/MH are more efficient than CFL lights - more light is put out per watt, so the excess energy with CFL must come out in some way - heat.
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430 watts of CFL will put out MORE heat than 430 Watts of HPS.
430 Watts of HPS will put out more lumens and PAR watts than 430 Watts of CFL.
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Bottom line - you will produce much much less heat with a 430 watt HPS bulb than with 660 watts of CFL. And you'll get more potent bud, more of it, quicker.
CFL will work, but not as well as HPS/MH. With CFL it takes more growing skill to get the same results as the same wattage HPS. HID will be cheaper to set up than CFL - bulbs, fixtures, extension cords for that many lights, the fire hazard ...
That is all I'm saying about CFL vs HPS.
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"The box was to be constructed out of ply wood or MBF... Do I have to worry about the HPS heating the box to the point of ignition and causing a fire?"
If you keep the bulb a half foot away from the wood you'll be fine.
"those were kinda the reasons I had chosen CFLs..."
Unless you're a CFL enthusiast, or have dozens of CFL bulbs
AND fixtures lying around, and can't afford a good light ...
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"I was looking at running a Cooltube with a 400w HPS (not sure what brand or model.. any suggestions?) and a Lumatek 400w Digital Ballast - 120v.. and have 6" ducting with and outside air intake and an inline 6" 188cfm fan on the exhaust side of the Cooltube exhausted out the top of the box. The ballast mounted on the outside of the box obviously.."
Sounds good but go with a magnetic ballast first time around - electronic are not as reliable yet. Only get an electronic when you have a magnetic to back it up. For bulbs - Horticulture, Argo, Sunmaster ... there are a lot of good ones. Cool tube is excellent for a cabinet but has poor light distribution for a larger setup. Best cooling air cooled hood.
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"6" 188cfm fan"
Which fan? Vortex or squirrel cage? I use a ~400 CFM vortex with a 1000W, but in a larger grow area.
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"Do you think a set up like that would run efficiently and SAFELY in an all wooden cab?"
It should run fine, just put your fan and light on the same plug so if you loose your fan your light goes off. Use good reflection - like reflectix or mylar - instead of paint. The paint may release odor at high temperature and Reflectix will protect the wood from the heat.
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"And if I was to go with (4) 5gal Buckets.... could I LST them for max yield? or would I want to grow 4 large single cola plants?"
5 gallon pots: top and LST. One 5 gallon pot single cola will fill up your whole cab - they take up a lot of space sideways. If you're going SOG style (single colas) go with smaller pots and smaller clones, pinch off the bottom third of branches to make the plant concentrate on the top bud (popcycling I think it's called) - more yield and better bud.
"I was thinking of rigging up like 4 more 48" bulbs to put between all for plants to get interior light along the full length of the plant as well as outside with with other FLTs... what do you think? waste of money or no?"
Side lighting is good but with a 400 watt, good reflection and CCOB growth, you won't need side lighting in that small space. UVB lights (reptile lights) are good for side lighting during flower to promote trichome growth. A 400 watt HPS is good for about 9" of penetration into the canopy, best to keep the plants short.
Stick to the basics at first, one light is more than enough to worry about starting out. The best bud is produced with good growing skill and basic equipment, gadgets just complicate things when you're starting out. And will most likely cause you problems rather than help you.
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"Would I veg and flower with the HPS?" or would I need a light set up for veg.?
MH for veg, HPS for flower. You can get a switchable ballast for both, or a convertable MH bulb for your HPS ballast.
"I remember reading something stating 9600k daylight or full spectrum (blue spectrums) are better at promoting vegetation and 2700k warm or soft white light (red spectrums) are better for promoting flowering..."
Correct. 2100K for flower, upper K for veg. I use a 10,000K HO CFL for veg, keeps the nodes short - I'm switching to a 175W or smaller MH for better growth. If you veg with HPS you will get tall stretchy plants. If you flower with MH it takes longer for the transition into flower but you'll get tighter buds. Some people like MH buds more, I tried it for a year and I find that it takes longer to flower. You can switch you lights around during flower for the best results (ie 2100K for the first two weeks of flower for transition / 20,000K for the last week of flower for trichome production).
"With the HPS would I still want to balance out with some blue spectrum lights? I've heard 60/40 or 70/30 ratios of blue/red for veg. and red/blue for flowering.. any thoughts on that?"
Some HID bulbs come with both an HPS an MH section in the same bulb for more balanced color, I haven't tried one yet. Other people have used the UFO LED lights as supplemental lighting with good results. You can use UVB supplemental lighting during late flower, HO CFL tubes for side lighting. I've tried a lot of different light options and I'm back to the simplest: 600 watt Horticulture HPS, 2100K for flower. I've got lots of reptile lights (UVB) but they get in the way and the higher wattage ones (I have a 160W spot and 8 x 30W florescent) put out a lot of heat. I like experimenting with the UVB from time to time. After I get my small MH ballast for veg I'm going to get some LED lights to hook to my Light Rail as supplements.
Supplemental lighting is good, but don't worry about it your first time out. A good MH and HPS (full spectrum) bulb will do fine, concentrate on not cooking your plants and cloning.
And
odor protection. Next to a locked door and a closed mouth the most important part of growing.
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Did I miss anything?
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