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So Im working on an equation to figure out the fan power necesary to cool my room. Im almost done but I need to know how hot a 400w light bulb will get. Either an hps or hid, whichever is hotter. So if someone could place a thermometer about an inch away from thier 400w light and give me a temp...

Sirius has had problems with paying off loans and such and almost went out of business for it. I cant really see this technology becoming much more mainstream than it is now so I couldnt see any big profits out of it. I also think that their contract with some major car company, i think GM, is...

I understand all that, I know the more time and effort put into the crop the better it is. But what I guess I'm asking is if there is somewhere someone can point me to a large quantity of good info about growing outside. I've got the basic jist down but would like to find some more reading on...

So I'm mainly an indoor grower but i stumbled in here a few days ago and got interested. Damn you guys grow some big plants. I've been reading up but cant find to much info so I've got a few questions. sorry if their a bit noobish, if you could point me towards a good outdoor thread or something...

great advice once again uncle ben +rep

yup, i would try and make it a bit more professionally/safer than that but thats the basic idea. I was thinking more like wall plug---dimmer----outlet----fan. that way you could plug different devices into it. I'll put a diy if i get some time this weekend.

just wire a dimmer light switch in between the plug and the fan. Maybe I'll make one of these this weekend and put up a lil diy.

tried to checkout with it and didnt work. damn that would have been a nice pick up

i know people put some kind of bar of soap to keep deer off young trees, that might work

If i force flower my plants early to keep the height down am I running any risks to the plant besides the decreased yield. I thought about sog/scrog to keep the height down but decided against it since this is my first grow

geeh thanks for the help guys

title says it all. thanks.

zeroing out my exhaust? The attic is ventilated so i'm not to sure of what you mean

for me weed has definetly outweighed any negatives attributed to it. Ive got slight A.D.D. but it was never high enough to get anything prescribed. I'm also just a nervous person when it comes to school work and things like that. Weed has helped me calm down so much and since I've gotten to...

Well ambient temps in the house are usually around 70. I am pumping the hot air into a my attic but what I'm worried about is having air being delivered to my grow room through the attic (away from hot air output). Its cold in the attic and I'm afraid that temps will drop if I pump to much air...

so what do you guys think of the idea of having a cool tube connected to the carbon filter via a y connector and then putting an electric thermostat to turn the cool tube fan on when it gets to hot and off if it gets to cold. Would this be able to keep the temps balanced. I'm asking this b/c the...

got a quick question for all you 400watters. will a 400hps become a major heat problem in a 3*4*8 closet. I'm going to have a carbon filter pushing air out and fresh air coming in passively but will this be enough? the closet doors will be closed most of the time

Do you think the amount of time in between switching light cycles would make a huge difference? I mean could I grow on 24/0 for 2 weeks then switch to 18/6 and then to 12/12 the next week. This way I can stay on my grow schedule

I'm going to try this out on my grow, good idea

Yea I'm not sure if I want a fan for intake yet, I'm thinking that the pressure created by the outgoing fan will just suck enough air in so why waste the money/electricity