Lighting and Ventilation
1,620 topics in this forum
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- 420 Crew
- 5 replies
- 965 views
hey i got about 12 plants under a 140w CF light, they need transplant to bigger pots & bigger light, 400w. if i put them under the 400w for 40 days,. there about 20-30cm tall now, how big will they maybe get ? i have plenty of vans for ventilation, so its all sweet, and i got nutrients and stuff. how do i apply superthrive (liquid form) to my plants in soil ? the label is kind of warn out, and i cant read squat, it has so much useless rubish on the label. can someone please advise.. ok, how do i prune my plants to get bigger stems = bigger buds ? i hope for my plants to be out mid/late january, i know it's late as! please advise asap., thanks all :bleh:
Last reply by WantDaChronic, -
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Cool Tubes
by Chato-
- 420 Crew
- 6 replies
- 970 views
Hey Stoners. Had a bit of interest in the Cool Tubes i use and am looking at getting a few more made. Just wondering if anyone else would be keen? Obviously the more i get made the cheaper they are so i can;t give an exact price on em yet but they'd be quite reasonable. Freight would be the biggest cost but once again the more the cheaper and it will take a little time to get everything sorted so let us know what you think? You can run them solo or i've had manifolds made up that allow you to run a few together off one intake and one exhuast fan. designs can be modified..... cheers c
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- 420 Crew
- 3 replies
- 698 views
i like shinny things
Last reply by Mushaman, -
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- 420 Crew
- 7 replies
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where can i get cool white cfls thanks
Last reply by fuze, -
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- 420 Crew
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hi os', setting up a room at the moment + wanted to run some ventilation ideas by you guys for some advice. room is approx 4m x 3m with a 2.7m ceiling. (33 cubic mtrs) exhaust will be by way of a 700 l/s (1500 cfm) centrifugal pulling through a carbon filter. i plan to vent directly into the ceiling. this leads me to my first queries: the roof is a flat-type roof. the cavity from ceiling to steel corrugated roofing is about 300mm. will ducting directly into the ceiling create excess pressure + heat in the roof cavity?? i'm guessing there is space between the roof beams for air to move + eventually find its way out of vents/gaps but not sure.... as …
Last reply by skilledmonkey, -
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- 420 Crew
- 2 replies
- 1k views
This is what I use over my two 400hps. Made from two old batwings, some ducting and an inline fan, It works well and I can keep the lights around 8 inches from the crowns. The fan blows cool air over the lights, it doesn't remove hot air. http://img.photobucket.com/albums/v331/grizzydog/ss4003.jpg And here's the splitter I rigged at the business end. http://img.photobucket.com/albums/v331/grizzydog/ss4005.jpg Hope that maybe gives someone some ideas.
Last reply by Hanky, -
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- 420 Crew
- 5 replies
- 1k views
I have one of these Ozone generators in my grow room: http://www.hydroshop.com.au/Products/Stock...asp?stockNo=484 I'm in need of a replacement Ozone flouro tube for it. I'm up for about $100 just for a 6w tube if I buy from this place, I'm wondering if anyone knows of a cheaper source of the tubes?
Last reply by hardb0iled, -
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Hi does anyone have any experience with these ? I am looking at getting 2 - they come in 2700K flowering and 14,000 ultra blue for vegging - supposed to be able to get them really close and they generate very minimal heat - could suit my grow room really well :scratchin
Last reply by Gazza2001au, -
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- 420 Crew
- 13 replies
- 1.6k views
Hello all, I have just discoverd the greatness of growing you own I have a spare medium size bedroom and I am thinking of puchasing a 423Watt HPS Ballast with a 423W Phillips Son T Agro Agriculture grow lamp with an adjustashade reflector and lampholder (Small – not mini, not large). The Son T Agro HPS 400w has 55000 lumens so I would guess the 423 has a bit more. Was also thinking of making a big box to go around them and foiling that. I wonder could anbody tell me if that is enough light. How many could I grow under those type of lighting conditions. Or does anyone have a better idea? Im open to opinion. Any reply would be appreciated.. Nat
Last reply by power, -
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Been using the new sunmaster 1000watt small jacket cool deluxe HPS to MH conversion lamp, just out by sunmaster in Australia. Would highly recommend it to anyone wanting only one ballast and want both MH and HPS lights in there veg and flore part of there grow. They are the bluest MH ive seen and give a really tight node formation. there web link:- http://www.sunmastergrowlamps.com/SunmWhatsNew.html Jack
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- 420 Crew
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- 782 views
not sure if my 400w HSP bulb is showing signs of dying out. I don't know the signs that your bulb is dying ? Obiously, if it's not working I need a new one. :thumbdown I know that the life is approximately 3000 hrs - but I have not added up the hours. I want you ask you people on Oz stoners if there are any signs such as a decrease in yield, change in coulur, dimming (lowered intensity) which would indicate that a new bulb is in order. I have not noticed a change of intensity (not that I have access to a light meter either) The colour is same to me - very orange. I can not determine when I purchased it (date unknown), but it is approximately 12 mths ag…
Last reply by Buddy, -
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- 420 Crew
- 10 replies
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ive just bought a 200mm Spectrum, centrifugal fan and mountain air filter.Ive always believed that dimmers are bad for electrical motors, fans included. Is this true? My local hydro shop is selling,"fan speed controllers" that are basically black transformer looking things, similar to a mobile phone charger, with a small smooth twisting knob on the front to control fan speed, and its labelled fan speed controller, it piggy backs the power plug..Is this thing safe????? Its only $50, i want one to keep my fan a little quieter, but i dont want to burn my house down.Has anyone ever used the fan speed controller from a normal desk type fan on an exaust/centrifugal fan???? W…
Last reply by Luke Skywalker, -
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Im going to experiment with dual lighting using a 1000 watt adjusta shade and two bulb sockets, one will have a 600 watt HPS and the other a 250 watt MH. I beleive this dual spectrum setup will enhance the grow somewhat. ATM Im growing 4 plants in expanded clay and recirculating drip system with bottled co2 and a mover. The last grow produced massive buds and I want to see if I can do better this time. The strain is unknown...it came from a mixed assortment of seeds from MJOZ. I'll post some pics tommorow.
Last reply by Buddy, -
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ok i am just about to turn my plants to 12/12 i have been growing under a 400w i also have a 1000w that i am not using am i better off using that for the flowering stage or is buying another 400w and running 2 400w a better idea as there is 17plants in a 3.5 by 2.5 room any help would be great
Last reply by highlife, -
I upgraded my lights. 1 2 3 4
by Guest Eikel-
- 420 Crew
- 35 replies
- 3.9k views
Eikel has upgraded his lights. (Don't you hate people who refer to themselves in the 3rd person? ) 2 x 600w HPS-Super SunMaster Bulbs. 2 x 600w HPS-Super JBL Ballasts. These babies will be replacing the 400w warm-MH and 400w Super-HPS I currently have in my flower box. I got a bargain at the store too, he gave me the bulbs/ballasts with 2 dozen rockwool cubes and free sticky-fly traps and a syringe for nute measurement - all for $380. Sorry for the crappy pics - these were taken with my camera-phone.
Last reply by Chev, -