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16-05-2015
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AJOR Gold
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Join Date: Sep 2009
Location: Perth (Deep Woods)
Posts: 2,538 What Jeep do I drive?: TJ
Likes: 342
Liked 307 Times in 169 Posts
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LED spotties - why so many fins?
I have some LED spotties on the TJ and they pump out bugger all heat compared to the old halogen spotties you could cook toast on, so why do so many LED spotties have fins for dissipating heat?
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16-05-2015
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EL CAPITANO DESTRUCTO
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Join Date: Jan 2013
Location: gold coast
Posts: 2,443 What Jeep do I drive?: XJ
Likes: 770
Liked 1,911 Times in 804 Posts
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Leave them on for 30 mins and see how hot the fins get
leds get VERY hot
hence the fins.
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18-05-2015
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Just Real Jeeps Club
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Join Date: Dec 2009
Location: Brisbane
Posts: 1,594 What Jeep do I drive?: CJ
Likes: 3
Liked 80 Times in 46 Posts
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Heats the main killer of leds, they need to stay cool, the better the heat dissipation the longer the lights will last
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18-05-2015
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EL CAPITANO DESTRUCTO
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Join Date: Jan 2013
Location: gold coast
Posts: 2,443 What Jeep do I drive?: XJ
Likes: 770
Liked 1,911 Times in 804 Posts
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Quote:
Originally Posted by yetiboy01
Heats the main killer of leds, they need to stay cool, the better the heat dissipation the longer the lights will last
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Also the ccoler they can run the more efficient they are and the better the light output
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18-05-2015
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AJOR Gold
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Join Date: Sep 2009
Location: Perth (Deep Woods)
Posts: 2,538 What Jeep do I drive?: TJ
Likes: 342
Liked 307 Times in 169 Posts
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Cheers guys - I've never noticed a heat build up with the LEDs probably because they are never on for an extended period of time but I will check on the next night run.
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18-05-2015
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Newbie
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Join Date: May 2014
Posts: 41 What Jeep do I drive?: JK
Likes: 0
Liked 7 Times in 5 Posts
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Led lights don't make a lot of heat but the electronics that drive them get hot and need cooling. Most high out put LEDs are switched on and off very fast. I've cut open some of the 60w LED lights we use on trucks at work and the heat sink on the back is not attached to anything so it seems more for looks. I have cut the heat sink back by 1/2 on my jeeps LEDs so they don't foul the winch and take a bit of weight off the mounts and they are still shining strong after a year
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18-05-2015
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EL CAPITANO DESTRUCTO
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Join Date: Jan 2013
Location: gold coast
Posts: 2,443 What Jeep do I drive?: XJ
Likes: 770
Liked 1,911 Times in 804 Posts
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Technically the "led" is the electronic part that makes the heat, being a semi conductor and all...
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