http://spectrum.ieee.org/semiconductors/optoelectronics/the-leds-dark-secret/0 http://spectrum.ieee.org/green-tech/conservation/led-bulbs-for-less Technetters, here are two links to articles about LEDs that appeared in IEEE Spectrum this year. They give some detail on LED properties to which TechNet posters have alluded. Louis Hart Compunetics Monroeville, PA USA [log in to unmask]<mailto:[log in to unmask]> 412-858-1232 ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________