http://www.propel-earth-initiatives.com/energy-saving-light-bulbs-might-get-greener/ Propel Earth Initiatives offers the latest in green news Fri, 07 Jan 2011 02:07:43 -0500 http://wordpress.org/?v=2.8.4 hourly 1 http://www.propel-earth-initiatives.com/energy-saving-light-bulbs-might-get-greener/comment-page-1/#comment-607 louie vitton Tue, 13 Apr 2010 05:07:54 +0000 http://www.propel-earth-initiatives.com/energy-saving-light-bulbs-might-get-greener/#comment-607 By changing the light emitting diodes’ semiconductors to yield a yellow-green color light and a blue-green light, the diodes can be combined to make white light. This gives a color rendering index above 90 – which is a good thing By changing the light emitting diodes’ semiconductors to yield a yellow-green color light and a blue-green light, the diodes can be combined to make white light. This gives a color rendering index above 90 – which is a good thing

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