Paper: LEDs Not As Cool As You Think You On Here » Paper: LEDs Not As Cool As You Think

According to a paper published in an IEEE journal, LED lamps can run hotter than equivalent fluorescent lamps.  Where florescents may dissipate 73-77% of their output as heat, the LEDs tested wasted 87-90% of their output!  Source here.

LED lighting has a long way to go. 

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