LEP Modul

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Xandre
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LEP Modul

We bought 3 LEP Moduls from Ali
and do some tests.

It is written in German,
but datas are international:

https://www.taschenlampen-forum.de/threads/lep-modul-600-lm-tlloe01.81906/

Thanks @ sma and Andi

Regards Xandre

Henk4U2
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Nice work! Any ideas how to proceed from here?

You are a flashaholic if you are forced to come out of the closet, to make room for more flashlights.

cyberpunk
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that looks cool

djozz
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Can those modules be driven with the same drivers we use for flashlights? I know that the voltage is a bit too high for 1 li-ion, but apart from that, are lasers any different from leds to drive?

pinkpanda3310
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Cool Cool

I love to buy one of those and make an lep host. Maybe one day….

  

Xandre
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Yepp
the same drivers but I am not an expert .
2 S is good,the LEP needs 4 Volt.

Regards Xandre

The_Driver
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Henk4U2 wrote:
Nice work! Any ideas how to proceed from here?

 

We bought modules without a pre-collimator lens on the phosphor. This makes them suitable for use with a reflector. Because of the small size of the emitting area (0.25mm2 i.e. one quarter of the size of a white flat1) you need a precise reflector to really make use of theses modules (electroformed reflectors and glass reflectors are probably needed). 

 

The luminance of these modules is similar to that of a white flat LED with wavien collar. The benefit is that they are easier to use in a flashlight because there is no collar to align and large metal precision-reflectors are cheaper and much lighter compared to large glass precision-aspherics. 

Xandre
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We use this driver for testing:

http://www.mtnelectronics.com/index.php?route=product/product&path=67_11...

and it works well
max 4A and the phosphor is still alive
but we made only short tests max 30 seconds @ 4A!

Most important is the heat transfer.
We pressed the modul in a cooper “heatsink”

https://www.taschenlampen-forum.de/media/img_20210423_205023-jpg.34053/full

Without heatsink the modul reached
100 degrees @ 2,5A within 4minutes

Regards Xandre

JaredM
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Two words. Awww sum Thumbs Up

Sunnysunsun
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Neat stuff! This is probably the diode inside those modules https://sites.google.com/site/dtrslasershop/home/diodes/nubm08-455nm-4-3...

The bottom of this page gives instructions on driving a laser module. I’m not sure which ones are mandatory and which are best practice for longevity. https://sites.google.com/site/dtrslasershop/home/laser-drivers