Fans in Flashlights?

jufam44 · Mar 24, 2008

Hey all,
So a friend of mine got me thinking, has anyone put a fan into a flashlight for cooling? Everyone's all about heatsinking now a days, and I was thinking maybe a fan would make a nice addition. Am I just being crazy here?

Thanks!
-Max

nzgunnie · Mar 24, 2008

I guess the only issue is current drain reducing run time, and air inlet and outlet holes for airflow, which limits it's water proofness.

darkzero · Mar 24, 2008

Here's one by ez78

276 · Mar 25, 2008

i knew someone would show his light again, that thing is assume

Crenshaw · Mar 25, 2008

been wondering the same thing, it would be highly impractical, and add more parts that might fail after awhile, but oh so cool... im thinking a 100 Cree LEDs mounted on a honeycombed piece aluminium, COOL MASTER fans or something inside. and a threaded hole for tripod use...

Crenshaw

glockboy · Mar 25, 2008

How about this?

TORCH_BOY · Mar 25, 2008

It would be a noisy light

Robban · Mar 25, 2008

When these things get out into the real world it might make a weee bit more sense for smaller lights to have actual airflow for cooling. But I think the general consensus is that unless you have a big honking light with massive heat generation the smaller lights need the space for batteries rather than cooling.

tebore · Mar 25, 2008

While that SS Fan is impressive it doesn't solve the problem that electronics still generating heat. I look forward to the day where electronics are 99% efficient or we move to the light based processing.

Duodec · Mar 25, 2008

I wonder if a heat pipe carrying heat from the die/internal heat sink to the outside of the light would be preferable. It could be made pretty weather resistant, and the more fragile heat pipe could be protected by external sinking/casement, like fins or ribs.

ToeMoss · Mar 25, 2008

I could be mistaken, but I believe heat pipes have a preferred orientation, so would not be practical.

paulr · Mar 25, 2008

There have been a few, I remember someone put three leds (don't remember if they were Crees or Luxeon V's) cooled by a cpu heatsink and fan, into one of those rectangular bike lights. it looked great and had something like 500 lumens of output.

Illum · Mar 25, 2008

Crenshaw said:
been wondering the same thing, it would be highly impractical, and add more parts that might fail after awhile, but oh so cool... im thinking a 100 Cree LEDs mounted on a honeycombed piece aluminium, COOL MASTER fans or something inside. and a threaded hole for tripod use...

Crenshaw

oh, a challenger to Data bank eh? :huh:

Fans in Flashlights?

jufam44

Enlightened

nzgunnie

Enlightened

darkzero

Flashaholic* ,

276

Flashlight Enthusiast

Crenshaw

Flashlight Enthusiast

glockboy

Flashlight Enthusiast

TORCH_BOY

Flashlight Enthusiast

Robban

Enlightened

tebore

Flashlight Enthusiast

Duodec

Newly Enlightened

ToeMoss

Newly Enlightened

paulr

Flashaholic

Illum

Flashaholic

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