Quote Originally Posted by smoknjoe
You still havent responded to my last post, check it out. This is the article I tried to post before, its from an independent source.

http://www.space.com/businesstechnol...ng_010926.html
So scientists are using LEDs to grow lettuce. What the hell does that prove? They're not comparing LEDs to HID, they're comparing them to incandescents, and we all know those are worthless. They're also talking about OUTER SPACE! Guess what? Nobody here is trying to grow pot in space. The requirements of lighting in space are very different than a teenager trying to grow pot in his closet. The advantage of LEDs for space is that they do not burn out and are completely shock resistant. That is not a problem on earth, because HID bulbs still last 20,000+ hours, and you're not launching them into space, so the fragility of an HID bulb is not an issue. They are also growing vegetative crops, like lettuce, not light intensive flowers such as marijuana.


Quote Originally Posted by smoknjoe
Since you ask, I'm graduating in a few months with a mechanical engineering degree from a prestigious US university. Don't really wanna disclose which one.
That really has nothing to do with lighting.