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Real white light LED discovered
Nashville, Tennessee - A boffin at Vanderbilt University has discovered and built a true white light LED, which is already being touted as a replacement for the light bulb.
LEDs have been available in most colours for a while, but when it comes to pure white there is always a problem. The closest boffins have managed is to make a very pale blue-white light which was almost good enough to light a room in a cold blue-white sort of way.