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robert robert is offline
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Default Why do LEDs generate heat?

On 03/10/2019 14:29, Commander Kinsey wrote:
Why do LEDs generate heat? I want a technical answer not "because
they're inefficient". And will we ever make them more efficient?

Besides the inefficiencies in the LED itself which other posters have
covered, LED lamps have some current regulation or power supply built-in
which will not be 100% efficient and thus generates heat.