5mm 100mA THC3 LED wanted for X1 mod any color

greenlight · Nov 29, 2004

This is going to be my first mod. Thanks to idleprocess for the idea. Should be easy enough to remove the stock led and replace it with a higher power one. Any color led would be nice- I would like to make different color X1s if successful.

Can anyone help me out on this? Advice or leds appreciated. Paypal or trade ok.

Trade for:

cratz2 · Nov 29, 2004

Ha! 'Leds' or 'leads' are appreciated... /ubbthreads/images/graemlins/blush.gif

Be sure to let us know how it goes. I love the form factor but would gladly trade a lot of runtime to get more output... Like many candlepowerforum members, I would assume.

Good luck.

scr7b · Nov 29, 2004

Are you talking about these puppys?

http://www.lsdiodes.com/THC3/

24000mcd white... I could be tempted to put my X1 in the freezer for that! Would the stock PCB handle 100mA though?

markdi · Nov 29, 2004

what would the value of the current sense resistor be for one of those led's

Lynx_Arc · Nov 29, 2004

depends on the input voltage and what drive current you desire to run it at. I find the quick and dirty way of figuring out resistors for LEDs is to get a 1kohm variable set to 1kohm attached between battery and led(s) with an ammeter inline and slowly crank it till you get the current you want then take the leads off the variable resistor and measure it.

markdi · Nov 29, 2004

well the x1 uses a 1.5 volt battery

Lynx_Arc · Nov 29, 2004

may or may not require some reverse engineering of the circuitry in the boost circuit to get the output to near 100ma levels that is if the circuit will do that high of current.

idleprocess · Nov 30, 2004

[ QUOTE ]
greenlight said:
Thanks to idleprocess for the idea.

[/ QUOTE ]
I'm not taking responsibility for this... /ubbthreads/images/graemlins/naughty.gif

markdi · Nov 30, 2004

some one modded a x1 with a luxeon
a couple of caps and a resistor change
I bet he was getting more than 100 ma to the led.

It drew 500 ma from the battery.

greenlight · Nov 30, 2004

Maybe it's not as simple as I thought...

markdi · Nov 30, 2004

modded x1

http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Board=UBB14&Number=704033&fpart=&PHPSESSID=

you would want a max of 100 ma to the thc3 led

greenlight · Jan 20, 2005

Has anyone tried this?

IsaacHayes · Jan 20, 2005

greenlight: I see the 24k mcd 100ma have a 30degree viewing angle. Not sure what the stock led in the X1 uses, but it has focusing optics anyways. There's 26k mcd 20degree 20ma LEDs on ebay, which allthough have a tighter viewing angle, are probably more efficient and just as bright.

I'd say go for the 26k mcd one, you don't have to mod the circiutry that way, and the stock board probably puts out greater than 20ma to the led anyways, so you'll probably end up brighter anyways.

greenlight · Jan 20, 2005

Right, I don't want to have to mod the circuitry if I don't have to. If I did this I'd want brighter colors too. The stock green led is pretty bright already, so maybe I'd start with something else, like red or cyan. The led with the narrowest beam angle would be ideal, since you don't want to waste any light on the bezel.

IsaacHayes · Jan 22, 2005

There ya go, you could mod a color they don't offer!

5mm 100mA THC3 LED wanted for X1 mod any color

greenlight

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