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heat generated by an led, and how it affects its response time, makes cooling a primary concern. because leds are semiconductor devices their light output is directly impacted by temperature.
up to 80% of the power for leds turns into waste heat, so if the thermal situation is not managed it will cause the led to perform improperly, stop functioning, or shorten its expected life.
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click here to read the entire pdf article, there is no cost for this engineering article. - see more at: https://www.coolingzone.com/library.php?read=671#sthash.vpeayafc.dpuf
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