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Board Lurker
Another "how do I run my led hot" thread
I've been looking at some older posts about over driving and could use some clarification. I'm well aware life spans and danger blah blah yakity smakity...
So the options you have are:
Constant current driver
The other driver in the store (I forget what it was listed as but you can set the output)
Or using two buck pucks.
Since current and voltage are relational, would using a smaller rated resistor have a similar affect or would it just fry the LED?
For example: if I were to use a 1ohm 2w resistor when having used ohms law to calculate 1.1ohms 2.17w as per the luxeon3 red /o
I understand there's a lot of other factors we can't control ( the luck of the draw right) but in a perfect world and the led runs to it's listed specs...
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Jedi Master
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Board Lurker
Yes?
Since current and voltage are relational, would using a smaller rated resistor have a similar affect or would it just fry the LED?
For example: if I were to use a 1ohm 2w resistor when having used ohms law to calculate 1.1ohms 2.17w as per the luxeon3 red /o
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Board Lurker
Thanks For the reassurance Nova, I sort of figured it wouldn't amount to much difference but better safe than sorry.
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I'm running a lux 3 red/orange with 4.5V (3xAAA) and the 2010 obiwan cheap hasbro, no drivers aside from the obi board.
What I'm trying to achieve is as anyone to get the LED it's brightest as I can, but at the same time making sure using the smaller resistor won't damage my components. * I was just curious if there were other(cheaper) methods aside from the drivers in the store or using two buck pucks to do that. Up the current as it were.
I used the term running the led "hot" based on info from this URL regarding what happens when you overdrive an LED.
"...*LED will have a spec that represents a typical point along the operating curve. That would look something like “3.3V @ 20mA typical.” Driving this LED above that point will shorten the useful life. You may also get a maximum rating for either current or forward voltage. Exceeding those ratings will dramatically shorten the useful life, generally ending it suddenly in the process. ***But driving an LED “hot” will make it burn more brightly for a shorter time***..."
http://led.linear1.org/what-happens-...rdrive-an-led/
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