On 28/04/2021 00:14, Dave Plowman (News) wrote:
Think it's generally known that dimming a tungsten bulb reduced its
efficiency dramatically. In other words, a 100w dimmed to half brightness
used a lot more electricity than a 50w on full. Although dimming did
extend the life of the bulb.

So how about LEDs? Since they generate far less heat are they still as
efficient when dimmed? And does dimming make a difference to their life?

The life of the dropper circuitry in the lamp will be extended by lower
temperatures, and possibly the life of the LEDs themselves by being run
less "hard". However its often the former that kills the lamp rather
than the latter.


--
Cheers,

John.

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