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I buy mine from cropseedkings.com They let you use visa debit cards (and paypal too i think). super fast shipping.

I have a window in the room. But I also thought that I have to have the window open to let fresh air in and to shoot the exhaust out of it as well, no? I was thinking of keeping the blinds closed, and having a thin black sheet over that too so air can get in still. Light will get in this way...

OK, so I have my grow tent and LED light setup. Now I am trying to piece together all I need for my ventilation setup, and I am a bit confused. All of the videos I see online show this: <-ducting <-inline fan (used as exhaust fan) <-ducting <-carbon filter. And that's all they use. So am I...

Back in the day, most I could find where I live is mexican dirt weed. That shwag had tons of seeds, and took an entire bowl to catch a buzz. It was $60 an ounce. I wonder the same thing. It has to be bad genetics + bad growing. Not sure what else would cause such weak weed other than genetics.

So I am a new grower. I got a new LED light panel. Is it cool to grow new germinating seedlings with it at the required height of the light 34-30" above new germinated seedlings? Or should I do some other kind of light? My new light does have a dimmer switch, but I have no clue whether I should...

OK, I'll give that a go, thanks! Hey, I am seeing when looking lux meters up online that they don't properly record LED lighting. Think it will still work ok when using LED's? Also, do I measure near the top of my plant?

God damn that's pricey! Still might get one though eventually. It'd be nice to be able to measure properly :o

Good to know! Yeah, I'm starting with some white widow auto flowerings. I have some random seeds my friend gave me too, might move those to outdoor usage. I had a feeling that the tent would have to be exclusive to groups of my projects.

Wow, thanks guys! Everyone has been so helpful.

Nice. Hmm, that video brings up another question. What tool is he using to measure PPFD? Looking online, I see different things like Quantum PAR sensors, "LED light meters", etc.

Oh ok ok. Thanks man. You've helped me a lot! I'm beginning to understand it better now.

oh that's what that all means, ty. I ordered a big ass panel LED light, but the one i'm using now is just a little circular lamp that clips on to things. But what exactly does the example mean when for example it would be 6"/15 cm? 6 inches high for every 15 cm of?? per every 15 cm of plant height?

3 of them, may be 5 here soon. I just put them under the lamp about 2 feet above it. Should it be closer than 2 feet above?

I just planted my seedlings into the soil, and put them in a propagator. At the moment I only have a little 35 watt LED lamp with 43 par. Would this be enough for them, and should I just put the lamp like 6 inches from the propagator? I simply cannot find any good info on this.

I'm a bit new at this stuffs. Does this mean it could run into a basic US 120V wall outlet? @coherent what does it mean when it can run on 220? Oh! One more question. would it be bad to use this light for the entire grow tent? Is it bad to have several plants in different stages, since only this...

Well, I assume it a 277V plug since it says Input Voltage AC110-277V in the item description.

Hey guys, new to growing and to this forum! So, I am confused about getting started with an LED grow light. One light that I found and am interested in is this one...