http://blogs.reuters.com/environment/2009/04/01/long-payback-takes-shine-off-leds-at-least-at-home/ Global environmental challenges Wed, 19 Jun 2013 10:56:06 +0000 hourly 1 http://wordpress.org/?v=3.4.2 http://blogs.reuters.com/environment/2009/04/01/long-payback-takes-shine-off-leds-at-least-at-home/comment-page-1/#comment-338995 Ché Graham Wed, 01 Apr 2009 08:21:04 +0000 http://blogs.reuters.com/environment/?p=12498#comment-338995 50,000 hours is only 5.7 years. 50,000 hours is only 5.7 years.

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