3W LED & Neopixel Ring Cooling

Projects General Guidance
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Hello Everyone, I have 2 Questions but they are pretty similar so I guessed putting them in one topic is OK. Anyway, I have A 3W High power LED (Shown in picture below): and I want to use it as a bicycle headlight.The question is that is the onboard heatsink good enough for a max of like 2 hours of use per day. if not I want the most compact solution maybe a raspi fan or small raspi hesatsink would do?

2nd question, I have 2 16 led neopixel rings one for front turn signals and one for rear brakes or turn signals. Is its onboard mounting thing good as a heatsink for it or not?
led_smd_3w-300x300

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What onboard heatsink?

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The star-shaped lump of aluminium the LED is mounted on?

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Yes
Sorry for confusion tho
Youssef

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The datasheet would tell about cooling needs.

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The star base will overheat fast if not mounted on a heatsink (with thermal glue). How fast depends on how much current you drive the LED with. Those LEDs are usually driven with 660mA, which is about 2watt. 3watt would require a stable 1Amp from a constant current driver, and a heatsink the size you see on an LM298 motor driver module.
A bike light also needs a reflector, because you want a narrow beam (not the 120 degrees from that LED) that doesn't blind oncoming trafic. Maybe it's better to buy a factory-made LED bikelight
Leo..

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This would be perfect:

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What about the neopixel ring ?

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So a combo like this wouldn't work? (ignoring the reflector part)
robu-2-23
Hfbd03a7d4b9c463fb3b65ce1a4fd41e6f-1000x1000
one of the heatsinks included here with that fan

EDIT: this for the High Power LED Not the Neopixel Ring

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Have you read post #7

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That's the trouble with asking 2 questions in one post: you've marked it as solved, but actually only 1 was solved!

What makes you think that the neopixel ring needs a heatsink?
They don't usually.

How about a link to the particular ring you've got?

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I have but I want a smaller solution so i thought a fan would make me be able to compromise on the heatsink surface area (also if with a fan it would be sufficient which direction should it blow with the incoming wind or opposite

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With

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No mention there of needing any heatsink for the Neopixel ring.

Ask the question on Adafruit's forum:

https://forums.adafruit.com/

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