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I know you love to tell everyone who asks about bho to spend a fortune or not bother. We get it, everyone really should do as you and make nothing but solventless from only organicly grown buds hand watered by naked virgins. But that wasn't the question. The question was is a vacuum chamber a...

If you winterize after blasting, a vacuum is not a must.

You must have a heat sink for each 3070. Not optional.

If you cannot work outside, then forget about butane, period. Full stop. No butane indoors. Ethanol is what you want. 190 proof grain like Everclear or Kleen Extract. Not cheap tho. So separate the keif from the green and wash that much smaller volume of material or further refine it to...

Fadedawg, would you please elaborate on your setup for cold boiling? Are you capturing the alcohol as it evaporates and condensing it? Does it pass through the pump, would a special pump be necessary because of that? Thanks

Not UV. IR. or near IR. Many on the LED board are using a 730nm LED lights for 10 minutes at lights out to increase nighttime hormone release and supposedly speed the day to night transition by up to two hours. Claims are for faster flowering times if the light cycle remains at 12/12 or...

I would load your container about 1/2-3/4 with material and pre-freeze. Fill a bottle with water and also place into freezer 10-15 minutes prior to making the block. Load a layer of ice cubes or crushed ice on top of the material in the container and then pour the nearly frozen water over the...

It is an inexpensive way to get started with a clear upgrade path, that requires nothing more than changing the chips. The question was how to replace a 1k hps in a 5x5. Then it was stated that LED was too expensive. So I gave a reasonable solution to both problems with the flexibility to...

I said 30-40% boost in output, not efficiency. And the upgrade will do that easily, in fact my guestimate was low. Even with V2.0 chips Vero 18s will put out approx 5.2k lumens @ 1.5a and 44w CXB3070 will output about 7.5k lumens @ 1.5 and 52.5w So due to the higher draw, the difference is...

16 x Vero 18 - @ $12.61 = 202 16 x drivers - @ $9 = 144 16 x Arctic - @ $11 = 176 $496 total plus misc, less than $600 for 800w that placed properly would crush a 1k hps This time next year, replace just the Vero chips with the CXC3070 high bin for an easy 30-40% boost in output. Or wait...

http://www.tme.eu/en/details/rad-a4291_1000/radiators/#

http://www.digikey.com/product-detail/en/19754-M-AB/345-1123-ND/3175829 price recently jumped from just over $20, back to where it was a few months ago and then some. crazy.

Pondzyme. Cheap. At local pet shop. Works like magic.

To estimate proper size of passive heatsink, you need a few details about your plans. First, determine the heat output by the chip at the current you wish to run. So assuming a 3590 @ 700ma is approx 50% efficient, meaning half of the 50w of energy input becomes heat while the other half...

I tend to disagree with an aggressive pursuit of efficiency today. Now, if you are fighting heat issues, none of this applies as removing heat can be the single most important item to consider. But, the rapidly advancing state of the art in solid state lighting makes being on the bleeding edge...

too late for this one, but look for smart pots for your next round. fabric pots will not allow your plants to become rootbound

http://www.fasttech.com/products/1612/10004218/1320605 should work fine on a vero18

Thought we should mention that these are worst case numbers for passive sinks. You should have fans blowing across your canopy no matter the lighting choices. So any air that can be moved across these units will quickly remove heat from the sink. Call it semi-passive if you will with a worst...

Sorry, no. Unfortunately, HUSA offers nothing more than the rating itself and no details about how they got there. Lots of good info in those links. thx Remember that while its nice to pretend that we have solid data with extreme precision to two decimal points, thermal management is a very...

I have a very difficult time believing that they manufacture their own diodes.