LED growlights
Main > Food and Agriculture > Controlled-environment growing
Researchers report approximately 40% yield win from using LED lights[1]. They are also much more energy-efficient than other kinds of lighting.
Plants need a mixture of blue and red lights, at a ratio of about two red LEDs to each blue LED. You can buy LED grow panels, but it should be much cheaper to just get bulk LEDs from Alibaba or a similar site. We need to research this.
[http://docs.google.com/viewer?a=v&q=cache:y2J4wNlxck0J:www.lssc.nasa.gov/als/ncera/Session%2520D/Morrow%2520NCERA%2520101.pdf+nasa+red+and+blue+leds&hl=en&gl=us&pid=bl&srcid=ADGEEShaMXyXF87HRJiYvdLdMtTaHOJ1bL-PFM4R1jTvDDWKOcvfyslTvevjDS5NTJhFd5RRAJbfhjXNpQteyf9lLgXgzJEQfhJw9su3xLDUFTgFUY5DYYruExNxvD3RBLYhDOC6Sf2_&sig=AHIEtbSbFMSDmZur_wv3fOONSlyBFFrfYw Large High-Output LED Array for Plant Growth slidshow by orbitech]