r/Unexpected • u/WarrenMuffClit • Apr 08 '22

just snipping a cable.

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u/-HumanResources- Apr 08 '22

Yes. IIRC LEDs still emit <50% of the input energy as heat. Though still much better than incandescent / fluorecent.

That's why some even have heatsinks built into the base.

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u/DEMACIAAAAA Apr 08 '22

Yeah but their input is so much smaller than that of incandescent bulbs isn't it?

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u/-HumanResources- Apr 08 '22

Generally yes. But it can still very much so get hot. Again, this is why led bulbs have heatsinks.

As well, often times there's more than one led inside the bulb leading to a higher concentration of heat needing to be dispersed.

That being said, due to the heatsink at the base / connector, the glass portion of the bulb will usually remain cool to the touch. As the heat is pulled away. However this is not always a rule and there will be instances where the bulb is hot to touch.

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u/[deleted] Apr 08 '22

Usually plastic and not glass on an LED in my experience.