Technical details: https://www.sealite.com/lighthouse-led-lights/
this post was submitted on 23 Jun 2024
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Those are heat radiators (above and below)? Is this thing liquid cooled?
EDIT (just saw the link): So yeah those are heat sinks, but I'm not seeing if they are liquid cooled. Maybe not.
Yes. LEDs on that scale generate a lot of heat. Far less than a normal bulb on the same scale, but the problem is that an LED array is more compact and sensitive, so it retains heat much better, and is more sensitive to it.
Source: I've retrofitted a lot of old ships with more modern LED "bulbs" for their search light.
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.
LED bulbs for vehicles also usually have at least a heat sink. Some of them even have a fan or other active cooling.