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The fan sitting on top of it? hehe, it's a fairly large one. 4.5'x4.5' I believe. Was pretty much the only 120v I could find but it pushes a ton of air and is built to last so I'm happy with it. If I ever do this again I'm going with one long heatsync and a single large fan like that in the...

I think tents are worth it. If you choose not to get a tent then at least by black and white poly aka pandafilm. You can find it at hydro stores and it's actually really affordable. Black on one side, reflective white on the other - easy to clean, easy to put up, ...

Glad to have you around. Not sure about ordering more just yet although I would love some 50watters to spotlight my aquariums... This is just an experiment so I went cheap and I'm staying small till I get a bearing on the whole LED thing. Of course, even sprung for the expensive 99% silver...

I've been posting this in my other thread so here's a quick catch up. These are 100w arrays (1wx100) ordered from ebay direct from China. 100w LED drivers from the same company. Heatsyncs from heatsync USA. According to my multimeter the cool white is pulling 87w at the array and the warm...

They have to give you a date of the inspection. So rent a Uhaul the night before, throw your ladies in garbage bags, throw em in the truck, toss a car battery in the back with a 12v converter to run your filter and then reverse it the next day :)

I've rooted in soil with no rooting hormones at all. So yes, you can root with willow water.

Here's a generic copy and paste that might be helpful. You can screw most all 75w CFLs into a standard socket. Go for true wattage and not incandescent equivalent. For cheap cheap grows I would recommend CFLs. To do it cheap focus on 23w CFLs only (other bulb cost much more $/w and...

Yeah, I know nothing about lumigrow but I have a hard time believing they use sub par materials. I'm a huge fan of UC Davis for Ag related papers and they seem to think the lumigrows are at least half decent. Of course this was for supplemental lighting in greenhouses but it seems promising -...

Drill slightly larger holes? Use a wrench to screw them in tighter?

I have no idea if they are the same or different but from my experience it really doesn't matter. As long as your root zone is humid enough they will root, and with most any type of sprayer it will be humid enough.

You are asking the wrong question... It should be, "what is the largest tent a 600w light can cover". I would say 4x4s and 600w lights were pretty much made for each other.

They look amazing. Is the name of that beer really "Cold"? Didn't think you could trademark a word like that.

Bravo, one upped for sure :) I tried the black box method and it didn't work at all for me for some reason - seems like the DVD had to be directly against the lens to diffract the light for some reason. No glass on my LEDs but I did fail over and over again to snap a decent pic of CFLs...

No need to use a reference as that's just a feature to compare any two spectrum - simply overlays the two when calculating intensity. Cool white 100w Array. Warm White: Ikea 3w LED:

Illegal to sell but not to buy? So you are helping someone else commit a criminal act each time you legally buy? That's really confusing. You realize aiding someone commit a criminal act is criminal as well, right?

Very interesting and that software is a ton of fun. This is what I ended up with for a single 3000k white LED (Ikea lamp) as well as from my cheapo 100w Chinese array.

So if the prisons provided the most basic of security for their inmates the US could cut rape in half. Pretty pathetic.

The two bucket method does really work. The waterfall effect aerates the water as it falls and aerates the water in the lower bucket by creating bubbles. But like others have said, an air pump is all of $10-20 and you can use it for bubble cloners, small DWC setups... they never go to waste.

I like the progression. Damn you flower fast. Guess that's why they call you the flowamasta. Bravo.

Use two containers and elevate one over the other. Poke a hole in the top one. When it's empty refill it from the bottom one.