interestingasfuck

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The modern "bulb" in a 150-year-old lighthouse. (files.catbox.moe)

submitted 2 years ago by Blaze@reddthat.com to c/interestingasfuck@lemm.ee

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Technical details: https://www.sealite.com/lighthouse-led-lights/

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[–] DarkThoughts@fedia.io 11 points 2 years ago (4 children)

Kinda crazy to think about considering that LEDs are so efficient that they typically do not produce any significant heat at the use cases we're used to.

[–] w2tpmf@lemmy.world 17 points 2 years ago (1 children)

The part that emmits the light doesn't produce heat radiation like a incondecent bulb, but the circuits driving them do.

[–] englislanguage@lemmy.sdf.org 4 points 2 years ago

That's not exactly true. The LED itself also emits heat. In most cases, this is more than the driver.

[–] foofiepie@lemmy.world 4 points 2 years ago

/Flashlights enters the chat.

[–] just2look@lemm.ee 3 points 2 years ago

LED bulbs for vehicles also usually have at least a heat sink. Some of them even have a fan or other active cooling.

[–] IMongoose@lemmy.world 2 points 2 years ago (1 children)

I've only seen it in enthusiast level flashlights lol.

[–] shalafi@lemmy.world 3 points 2 years ago

I have a few that will hurt your hand after a bit, and most have a heat cutoff sensor.