Headlamp 3AAA mod

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arenat
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Location: Argentina
Headlamp 3AAA mod

This one has had 5X5mm leds which light output was awful.Now has a XR-E Q3 with an AK-47 driver with 2 MC7135 , 700 mA at H...the emitter is thermally glued to a 2mm thick aluminum piece...the light now is very usable despite the blueish tint...first tried with an Osram diode warm tint 1 MC , 350 mA, as the difference in output is  not very noticeable this mod would last until the hardware store open, need some glue sticks to put a lens and swap  the emitter again Laughing

The innards with the 10440 and the driver

Edited by: arenat on 03/12/2011 - 15:32
fishinfool
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Very nice mod arenat. 

 

Don wrote:

"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion

Don
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Good idea!

 

Keep up the good work!

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

arenat
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Thanks guys!

Another try,with some lens unknown angle sanded down , nice warm tint, Osram...

Being the package of the diode square I cut his angles to fit the lens , the beam is narrow, maybe too narrow for a headlamp..

arenat
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Finally with a bit of work the result is fine, better than expected.

Emitter ; Osram Golden Dragon Warm tint 120 Lumen

High .700 A

Med  .200 A

Low   .035 A

Power; 10440 li-ion

Slide switch

Rear magnet

Weight; 34 grs With battery..

The low mode is enough to read and the high is a bit too much  for close work, the sanded lens give a very even nil artifact flood spot. 

The only problem is that I can't find the band Laughing