Comments on: The LED (light-emitting diode) 50th Birthday http://www.greenisp.net/blog/the-led-light-emitting-diode-50th-birthday Green ISP News and stories, subscribe to news, advertise to thousands Sun, 23 Feb 2014 12:17:27 +0000 hourly 1 https://wordpress.org/?v=4.9.5 By: Ped http://www.greenisp.net/blog/the-led-light-emitting-diode-50th-birthday#comment-712 Tue, 18 Dec 2012 13:38:13 +0000 http://www.greenisp.net/blog/?p=252#comment-712 Amazing, Fantastic.

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