Researchers at Cambridge University have come up with a method to significantly reduce the cost of creating LED light bulbs. LEDs use gallium nitride and requires being grown on sapphire wafers. The new technique allows growth on silicon wafer reducing the cost significantly from $28 to $3 per bulb. The big news for the bulbs is they use 12 times less energy that incandescent bulbs, last for 60 years, and they are far enough in their research that they could come to market in just a two years. Just imagine, in just a couple years you could be buying your last light bulb(s) of your life, unless you physically break them of course.
This this so exciting for indoor growing, my cheap LED grow box works great for the small space for seedlings. When I start thinking of expanding my growing area, the current LED prices make the start-up cost to illuminate a large space is considerable. Because of this I am forced to resort to CFLs as the more economical solution. With these innovations we could definately see indoor gardening much more accessible to a greater audience with this financial barrier lifted. via Gizmodo