Lighting and Ventilation
1,620 topics in this forum
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Hi Guys, Just a quick question, how much heat should a balast generate? I'm just in the process of fitting out a new wardrobe and have begun heat/noise trials. My drobe is approx 500Dx1200Wx1600Hmm internal grow space, I have a 400w HPS in a cool tube being cooled by a 100mm inline. (I'm still not happy about this, the guy at my local store talked me out of centrifugal and into this, it seems ok at the moment but it is first on my upgrade list) So, for the trials I have just sat the balast on the floor, but I have notice it is generating some serious heat, is this normal? It isn't in the direct light and the box is maintaining a nice 27c about a foot above floor lev…
Last reply by stealthcflbox, -
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Heya Guys , well Summer is goin Bye -bye's and most are getting ready for their new grow....Woot Woot! But when was the last time ya ripped the duct off and had a good look at the fans internals and the carbon filters condition? Dust and Debri is a major contributor to electrical fires, once it builds up it blocks airflow and can cause over heating. Here's a shot of mine, was mounted in roof and the inlet from manhole in room, 200mm Centri, 250x500mm carbon Filter, so shouldn't be a lot of dust and stuff eh? Well Guess again...............6 months use after clean....... and this is what I found... As you can see on the carbon filter, the panels are choked with dust e…
Last reply by pumpkinpatch, -
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- 420 Crew
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Hello again everyone, I've purchased my new grow tent (2.8x1.4x2M) complete with 2 600Watt ballasts, globes and a 10" centrifugal fan. Would I be better off going hydroponic straight away? I kind of wanted to start in soil for my first attempt, but i am after maximum yield in minumum time. What would the difference be when growing Pure Kush? Thanks!
Last reply by Mr Jane, -
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I recently went to the local hydro store and was interested in buying a 400w HPS and was looking at buying a metal halide that would work in the same reflector. The bloke there said that 'Using a metal halide during the growth stage was what all the old school growers do, but you can just use a HPS the whole way through, you just have to remember to change the light on hours.' Anyone else tried an entire grow using HPS start to finish, and did you see results just as good if not better than using a MH or a fluro?
Last reply by buzzo, -
The woman at my local hydro shop told me (after phoning the owner) that most of the current LED's are crap, but they are waiting for new digital (?) LED's from a US co. but prob won't arrive til after Christmas. Does anyone know a source of these 'new tech' LED's - she said she didn't know - (or maybe wanted me to wait and buy them locally?) Fair enuf but I would mind one now - my prob is limited grow space = excessive heat with hps or mh, plus with summer coming - a 90w=400w hps would be nice - but not from China... no offence. Anyone ...?
Last reply by flic, -
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- 420 Crew
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Hi i am in melbourne, can anyone tell me if they sell mylar in bunnings? Also has anyone used mylar? Do i just wrap it around my grow area or do i have to stick it to some ply board?
Last reply by Naycha, -
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http://www.ebay.com.au/itm/Marine-aquarium-light-unit-GIESEMANN-moonlight-2ft-computer-controlled-/170797967353 From the description: "It has 1x 250watt metal halide, 4x t5, 1x moonlight. It is all controlled by a in built computer, which dose a 14 day moon phase, dimable t5 from 0% up 100%, cloud cover, water temp, globe replacement..."
Last reply by The Hash Nibbler, -
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- 420 Crew
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Hey guys, just wanted to know if anyone had a rough idea of what a 400W or 600W HPS would cost to run for a month/quarter? I dont want to set something up then see a million dollar power bill at the end of it. Thanks M.I.A
Last reply by Gazza2001au, -
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- 420 Crew
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gday. i have a fish tank fluro light here and was wondering if it could be used during seedling/clone rooting growth. i have it so i figured i would use it if its suitable. Its an T8 Aqua One 20W tropical tube with the housing. the tube is new. would appreciate some info on what to use that doesnt break the bank if this is no good. thanks
Last reply by Ozzy420, -
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Hi all, I am wanteing everyones experience when it comes to using ozone for odor control. I know many of you swear by carbon filters and they are good, but in my particular circumstance I have a carbon filter in my tent (1.2x1.2x2) and another carbon filter with fan in the room the tent is in so the tent is pressure neg, and the room the tent is in is also pressure neg. So the air has to clear 2 filters (small and larger one) before being expelled out of a second floor window. The Carbon filters are 6 months old. I am still having some odor issues in the air being vented, on a still day (no breez) you can catch an odor when drying and from week 5 on wards. No I believ…
Last reply by Stix87, -
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hi all can i use a 250w HPS bulb in a 400w ballast - 400w HPS is way too hot - is 250w bulb much cooler as well
Last reply by KAPOW, -
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Hi all, I have a quick question with regards to carbon filter and fan cfm. I have a 6" 440cfm carbon filter and a friend gave me his 6" 192cfm fan and I was wondering if I can use these together? The space is only 4'x 3'x 5' so would these work together? Don't really want to spend the money on a new filter if it's not needed.... Cheers guys.
Last reply by nici, -
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Would this work. I have an air con duct in my grow room ceiling, I was thinking of leading my exhaust duct into that vent and letting it blow into it. This would be good for spreading the heat around my house, but would it ruin my air conditioner ?
Last reply by TrueBlue, -
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hi all it was suggest to me to use a philips 80w cfl to start as they have a high lumen rate ? any advice ? anyone used
Last reply by stealthcflbox, -
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Hey all, im new to this site, whoo so much info to take in... IM a little confused im wanting to set up my warrobe and have 400watts going. Will i need both flowering and veg growing kits and two defferent rooms? Or can i just grow under the same one and flower too.. Any help would be awesome... Cheers guys
Last reply by bigtime89,
