ScienceDaily (June 15, 2009) — Researchers are reporting the first use of a fundamentally new approach in the quest to snare the Holy Grail of the lighting industry: An LED (light-emitting diode) — those ultra-efficient, long-lived light sources — that emits pure white light. The new approach yielded what the scientists describe as the most efficient and stable source of pure white light ever achieved. The advance could speed the development of this next-generation technology for improved lighting of homes, offices, displays, and other applications, they say.
Soo Young Park and colleagues note that white LEDs show promise as a brighter, longer-lasting and more energy-efficient light source than conventional lighting, such as incandescent and fluorescent lights, which they may replace in the future. But scientists have had difficulty producing white LEDs that are suitable for practical use. Existing technologies produce tinted shades of white light, require complex components, and become unstable over time.

The researchers describe development of a new, simpler white LED that is the first to achieve stable white light emissions using a single molecule. Their specially engineered molecule combines two light-emitting materials, one orange and one blue, which together produce white light over the entire visible range. In laboratory studies, the scientists showed that light production from an LED using the new molecule was highly efficient and had excellent color stability and reproducibility, features that make it a practical white light source.
http://www.sciencedaily.com/releases/20 ... 100401.htm

This can be used with mentally retarded people

how?

Pure white light sounds tasty.

tasy?

it makes me think of lemon icecream

You can give them the idea to cool off

I hate pure white lights. They seem too industrialized...The yellow glow is more natural looking

I hate yellow lights. :/

White is cool.

White is too...white. It's so unnatural looking. Fluorescent lights are just ugly. It's okay though they're starting to make yellow lights now. I think the LEDs are the ones that they're making look more yellow.

I like white because it makes my eyes hurt way less then yellow light does

Yellow light doesn't do that to me at all. And like LED christmas lights have such a cold feeling to them. Whereas normal lights have a nice warm glow to them.

i prefer lights that don't blind, im blinded very easily, even just natural light can blind me. but i like to be able to see everything

so i prefer lights that are aimed at the ceiling, they're dimmed, yes lighting, and ofen a darker yellow.