" Pollenated weed plants grow seeds instead of synthesizing THC and other cannabinoids. Well, they still synthesize these compounds, but in much smaller quantities."

As a medical user that grows it all the time, WRONG.

Most of the useful cannabinoids are produced and contained within the trichome. Seeded sections of flowers tend to have higher concentrations of these trichomes, as it's a protective measure against UV damage by the sun to the developing embryo, due to how thin the tissue of the calyx is.

Exactly. I've got a 55 gallon freshwater, using a single 50w 6500K panel (I'm only driving it at half power.) Everything is well-lit and the plants grow so quickly I'm having to remove an entire jungle every time I'm changing the water.

And anyone with half a brain knows they can just go to the manufacturer direct in most cases and get what they need. They have no qualms selling to you at the price they give to wholesalers and retailers. None.

On the other hand, finding someone that knows EXACTLY what you need (my job) per a given situation is not easy, which means most people are still stuck listening to the marketing of fly-by-night ebay companies and less than reputable LED grow light companies that claim to have patents when they're just reselling stuff from China.

"This Wikipedia page [wikipedia.org] has several examples of the efficiency of different kinds of lights. Most of the LED examples they give show around 50-100 lumens per watt."

Quit relying upon Wikipedia. It's outdated. Cree's already pushing 300+ in the labs and have 200+ commercially available. Most LEDs are pushing 130-150 right now.

You've listened to wayyyyy too much marketing and read too much ill-educated nonsense on cannabis forums.

The light cycle itself triggers flowering. Red light just happens to be a bit more efficient than blue for photosynthesis. I've done flowering under pure blue light and still obtained the typical stated yield from the seed supplier's website.

HPS gets used for flowering because the intense green output, which can go through the canopy, down to lower sections of the plant, where the green has overall superior quantum yield, as red and blue will not penetrate that far. IR has minor effect.

Guess what? We've got white LEDs pushing well past anything HPS lamps can do in terms of lumens per watt (really we're looking for photon flux density) and at color temperatures much closer to the natural light of the sun. HID? Finished.

true, but they are not in it for the long run. They want to make as much as possible today and move on to the next target. It's not so much whether it is the right or worngthing but "can I make enough money doing this instead of something else?"

Yea, theres a lot of risk in such a move. But an investor need nobly buy enough to force the issue with the board.If someone else pays a premium over what they'd get then they'd happy dump their shares. After all, the name of the game os making money not what is best for Yahoo.

The problem is, to make that suit go, they claimed (and the court accepted) that there was no way to breed resistance without using their patented gene. That has been disproved. There are a number of weeds that evolved their own independent resistance and at least one researcher bread a food plant that has resistance without using Monsanto's gene or GM techniques.

I am not OK with 12 year olds having babies, that's for sure. That is what your lamp analogy would suggest.

Life begins at birth. That's when the brain becomes active. Before that it's just in a dream state but has nothing to dream about. Arguably, that suggests a growing ethical problem at the point that a fetus could be viable if birth is induced (that suggests the 2nd trimester as the cutoff).

So every menstruation is a murder? Had the woman (or older child) just added sperm, it could have been a life!

So you support human rights for skeletal remains?

Proper Libertarians would object to the existence of corporations in their current form. Incorporation is a grant of special status from the government.

Correction, XPG2 is a 5W LED, not 5A. 1.5A drive.

"Marijuana plants like direct, intense sunlight. Unfortunately LEDs aren't very scalable. As you increase the current they start to run into physical limitations and the efficiency goes to hell. A 100W led may only put out 50lm/W, where a 1W led could put out 100lm/W."

I'm sorry, we've got plenty of LED systems out there pushing 2,000+ umol from several feet away, like any HID. And typical 100w LEDs are about 130 lumens per watt. Cree has LEDs available for the consumer that at 1w drive get 200+ lumens per watt (Cree MK-R) We figured out the Auger/watercooler effect and are working around it. We've got LEDs that dump 150+ lumens per watt at 5-10A drive current, now (Cree XPG2.)

"HIDs are actually extremely efficient (Around 100lm/W) and scalable (bulbs go up to 1kw+)."

We've got 1,000w LED packages in 70mm x 70mm size, with better efficiency.

" To get and equivalent amount of light out of LEDs with some sense of efficiency, you'd need thousands of them."

Plants care about photon flux, not lumens, which is weighted at green wavelengths for human vision. That's not saying that green light isn't useful in itself, but lumens mean jack shit when it's overall photon flux density making the real difference. I'm questioning how out of date your information is. Seems like way early 2000.

And thousands? Seriously?

http://tinyurl.com/mxq5w2b (PDF WARNING)

Try a couple hundred, easily fit on a 30mm x 30mm COB array board. Those are 5W LEDs each. The Cree MK-R is a 15W LED. 100 of those is 1.5kW.

" This may be suitable for plants that can deal with indirect sunlight, but it is not ideal for Cannabis."

http://i.imgur.com/5sCX9NX.jpg
http://i.imgur.com/KDI9NNX.jpg
http://i.imgur.com/cu2IsVO.jpg
http://i.imgur.com/0sJiDxs.jpg

Uhhhhhh..... what? Speaking as a medical cannabis user and grower, and as a landrace genetics preservation specialist for a Dutch seed bank, you're totally, absolutely, utterly wrong.

Which it is why an outside inverter or group of investors need to buy enough to force the boards hand; which usually only happens if a few board members are replaced. This type of change needs to be driven by outsiders who stand to make a boatload of money by changing the fundamentals of the company; however they first need to be convinced that the breakup is financially more lucrative than as an ongoing single concern.

Let's take one of the crops I've done. Wheat fodder grass for animals. Using current traditional soil methods, one acre of fodder grass will require 100,000 gallons of water. Most of this water is lost via transpiration of the plant and evaporation from the soil.

I can build you a 1/8 acre building, load it up with recirculating vertical-stacked NFT channels, and you could produce that same acre of grass using 1,000 gallons of water.

http://www.youtube.com/watch?v... - have one of the UK projects I worked on.