LED heat...

mhayenga · 06-16-2002, 06:10 AM

I know that leds output very little heat, but I have a project in mind which would use a very large quantity of leds, basically it'd be a large array of them controlled by a motorolla 68hc12 microcontroller. So, how much heat would 128, 256, or even 512 perhaps (yes, powers of 2 for a reason) output?

bigben2k · 06-16-2002, 08:31 AM

Offhand .014 each LED or:

128: 1.8 Watts
256: 3.6 Watts
512: 7.2 Watts

This would be on the high side, unless you're using laser LEDs. You should be able to lookup the actual specs of the LEDs you intend to use.

06-16-2002, 06:10 AM	#1
mhayenga Cooling Neophyte Join Date: May 2002 Location: Earth Posts: 46	LED heat... I know that leds output very little heat, but I have a project in mind which would use a very large quantity of leds, basically it'd be a large array of them controlled by a motorolla 68hc12 microcontroller. So, how much heat would 128, 256, or even 512 perhaps (yes, powers of 2 for a reason) output? Last edited by mhayenga; 06-16-2002 at 06:14 AM.

06-16-2002, 08:31 AM	#2
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Offhand .014 each LED or: 128: 1.8 Watts 256: 3.6 Watts 512: 7.2 Watts This would be on the high side, unless you're using laser LEDs. You should be able to lookup the actual specs of the LEDs you intend to use. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

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