Lighting and Ventilation
1,620 topics in this forum
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- 4 replies
- 753 views
My MH bulbs wont stay on. When I plug them in they come on, sometimes fast sometimes more slowly. I have two ballasts and I've tried them both. On ballast A they stayed on longer, about an hour. On ballast B they only stayed on 20 mins or less, or never really got bright. They are both MH ballasts but I have one HPS conversion bulb. When I screw in the HPS conv bulb it starts right up and there is no problem. My first thought was that the MH bulbs are "done". But, would they both be done at exactly the same time? My other thought is: can there be a problem with my transformer? I brought these ballasts over from the US where the power is 110-115v. I checked the voltage co…
Last reply by jkiesler, -
flowering period 1 2
by BaronS- 11 replies
- 1.6k views
just wondering what people may suggest about longer (or indeed shorter) 'day' periods for flowering. is 12/12 optimal?
Last reply by paddy1974, -
- 15 replies
- 1.7k views
Im looking for lights to keep 3 bonsai mothers alive In my small mother room around 2ft deep maybe a bit more about 18inches high and close to 9 inches wide all these figures can be change as I have not started constructing my cab... yet! The lighta should be good for veg (not interested in flowering) but I dont want too much growth that I have to keep pruning the mothers all the time. I was thinking maybe fluros tubes? would I be able to get a sparky to wire them all up to 1 plug 1 more question is it possible to run everything in the cab lights, fans, pumps and ballast all off the same powerpoint obviously it will be hooked up to a 5 hole powerboard but is there su…
Last reply by BaronS, -
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- 577 views
I haven't started to build yet as I have a cash flow prob at the moment, so I am looking into cheaper alternatives to the parts needed for my wanted grow-drobe. I have pooTubed a bit and found some interesting videos on how to make your own carbon filter.. my questions are: (other than has anyone made their own filter before?) Do you have to use activated carbon, or can you just make your own charcoal in a barrel in your backyard and use that? and, if anyone has made one before, what did you use for the basic structure?? Do I have to make it like a proper filter, or can I make it like a gas mask filter??? (because if I can then I can make it out of stuff around the …
Last reply by Token, -
- 2 replies
- 619 views
pic says a thousand words? If I can pull $120 worth of mull out of the cupboard every 3mths I should be happy :-) unless I've fucked up the sums, pls chk.
Last reply by BaronS, -
- 6 replies
- 850 views
what fan and filters are you guys using and recommending. i got a drobe of 2 metres high and about one and a half wide i been recomended a 55cfm by the growroom calc and to use co2 i got a 600 watter in a cooltude wich is 150mm i think . what fan and filter will do the trick for me price in medium to expensive range. wow i know what i want
Last reply by psychoresin, -
- 4 replies
- 770 views
I'm thinking of purchasing a 400w hps light and reflector and ballast kit. I might get a 600w, im unsure. Probably a 400w. How heavy is all this? I know I would be able to put the ballast on the ground but the light (and standard reflector) would be hung from the coat hanger bar in my wardrobe. So any idea how heavy it would be? I have no idea and I don't want it collapsing, it isn't the strongest built wardrobe ever. thanks
Last reply by canaman, -
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- 420 Crew
- 9 replies
- 985 views
hey guys, i've figured that the reason my plants are growing so slow (at 5 weeks biggest one is still only 2 inches tall), is cos of the cold temps. im hand watering atm so water heaters arnt an option, im gonna go with a res for my next grow but in the mean time how can i warm up my babies? p.s. a proper room heater isnt a favorable option, would one of those heat mats be best?
Last reply by Naycha, -
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- 420 Crew
- 5 replies
- 1k views
Although I run a thermo control, my exhaust on a hot day sucks the plastic of the walls. Does this negative pressure in the room effect plants?
Last reply by uka, -
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- 4 replies
- 771 views
I have had an ongoing problem with radiant heat/in room air circulation causing "canoe" leaf curl in my wardrobe grow. https://cannabis.community.forums.ozstoners...25051&st=16 At this stage my only solution is to have the lights over 1 metre above the plants. I'm running two 600W HPS inside a floor to ceiling inbuilt wardrobe. At that height the plant is fairly happy but any closer and we've got trouble. Strangely the thermometer on the wall above the height of the plants reads low-mid 20's. I've always been aware that the addition of oscillating room fans could help but I cannot find any small enough to fit in the wardrobe. I have looked everywhere. Does anyone kno…
Last reply by bloodshot_eyes, -
- 4 replies
- 648 views
SO WHAT!!! I have 2 timers on specific on/off intervals and they are in 'common view'. OK, 'stealth' would have just the one plug used and the timers would be out of the way. I don't have to bother much about stealth. I can't help but show my feminine aspect, I reckon they look cute. Little '2 pack' of timers Bunnings had while I was looking around. They also had singles, and I only needed another one, but I couldn't resist (matched timers). NOTE: Watch Bunnings pricing, these were marked ~12 bucks on the shelf, cost me 16 at the checkout (like I care) and unlike Coles they wanted PROOF by getting some yobbo to walk down the aisle. I told the young lass to forget it…
Last reply by psychoresin, -
- 0 replies
- 627 views
So I was looking for something to improve my shitty cloning situation and i thought i may as well splash out and buy a new light. So I thought those LED panels look ok, and if theyre not too crash hot well its only for cloning so no great loss. Plus, someone has to try em out sooner or later. Has anyone given em a go yet or will it be me? I was thinking of buying two CFLs then i thought 2 of the Aussieponics LED panels are only 20 extra (60each) so why not. Yeah Yeah, its Aussieponics but ive learnt my lesson - send em to a friends! Anyone got experience or tried LEDs yet?
Last reply by calaman, -
I was thinking the Allvent 200 UF?????? seemed pretty quiet compared to a can fan? I am in a flat on the second floor and noise is a problem? So what exhaust fan have you got and how do you find it? Is centrifugals the best to use verse noise, if not what?
Last reply by Wrangler556, -
- 10 replies
- 1.8k views
Anyone using these and noticing the huge difference they claim to make-30% more light, 30% less power- 100% more price!! Or is this clever marketing.....?
Last reply by Innocent criminal, -
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- 420 Crew
- 8 replies
- 857 views
hey guys, im new to this forum and have a few questions about starting up an indoor grow. ok so ive got a setup in mind for a sea of green and plan to get a perpetual harvest crackin aswell. i have pulled several outdoor crops and enjoyed every moment of it. so im thinkin its time to grow some sweet indoor goodness. i saw a reall great setup on here that im going to try and adapt for the room i have in mind. im pretty sure ill have ventilation, electricity issues such as ballasts and safe wiring, humidity, nutrients and room temperature covered but am curious about the lighting situation. ok so the setup involves four trays of some sort, one for each 2 weeks of flowerin…
Last reply by Reverend, -