The last panels for grow labs, are florsent flat panels, with harvest of wheat and other grasses.
At $10,000 per liftoff weight cost, leds did not make it.
The sulfer bulb, is just like wind, solar power, only the goverment can efford it.
The sulfer microwave system requires light pipes to manage it. 1400 watts in 1000 watts out, last price I have seen is about $3,400, plus light pipes. a 30 year old ballast is much more efficent.
A few things to think about 1915 electric car went 80 miles on a charge a 2005 goes 80 miles on a charge. A 1940 Crosley got 50-60 mpg a new Toyota gets 50-60. just the higher cost of snow jobs.
The major differance is gas back then was .08 per gallon, and the break even point for the Toyota is a little over $10.00 per gallon. Today people are much richer they pay between 4-10 bucks a gallon for drinking water.
If N.A.S.A. can not efford them how can a pot growers do it.
Karma,Vodo,Hodo, Watts=watts,,, BTU=BTU,,, My fairy god muther is a whore and she charges for favors. :rasta: :twocents:
I must give everyone credit for trying, Put you B.S. M.S. Phd in elec. engeering to help N.A.S.A. :thumbsup: