SureFire M3 owners - what bulb/batt combo do you run?

T45

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Well my friends, after purchasing a Surefire M3, S/N A21750, I knew I had to have an LED for this new light, and I also wanted to know first hand the quality of a Malkoff Devices Module. After installing the LD10, I would consider this to be a near perfect combination, in my humble opinion, and As an alternative power source from the presently used 3xCR123s, I may try a pair of 17500s in the future.

EXCELSIOR!
 
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T45

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Wichita KS
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:bow: One Of Gene Malkoff's excellent MD10 LED Module
 

night.hoodie

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Or, MN10 with 2 17500's.

I'm curious about running MN10. Knowing little about it, if it is stock lamp for M3, I assume nominal bulb voltage is about 7.4V running 3xCR123A.

I have a 2-cell M-host, intended to run 2xIMR18350. I am aware and intend to run more appropriate lamp options for these cells, but curious if valid to keep MN10 as backup only, unsure if high amps and full voltage (8.4V max) will vastly reduce lamp life.

Is it expected that 2 fully charged IMR will flash this lamp?

How about 2xIMR @8.2V? @8.0V? @7.8V?

Will running 2xCR123A w/ MN10 increase or decrease lamp life (if I don't mind reduced output and color temperature)?

(Sorry if off-topic... I picked this thread among available info-packed M Series/MN10 threads because it is short, quick and easy to scan all posts.)

Thanks CPF!
 

fivemega

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Jan 28, 2003
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I'm curious about running MN10. Knowing little about it, if it is stock lamp for M3, I assume nominal bulb voltage is about 7.4V running 3xCR123A.

I have a 2-cell M-host, intended to run 2xIMR18350. I am aware and intend to run more appropriate lamp options for these cells, but curious if valid to keep MN10 as backup only, unsure if high amps and full voltage (8.4V max) will vastly reduce lamp life.

Is it expected that 2 fully charged IMR will flash this lamp?

According to this, each primary will have about 2.5 volt under 1.2A load which is current draw of MN10
Each IMR 18350 will drop to about 3.9~4 volt under same load then gradually drop even lower. So powering MN10 with pair of fully recharged IMR18350 will slightly overdrive the bulb for few minutes then run almost at spec.


Will running 2xCR123A w/ MN10 increase or decrease lamp life (if I don't mind reduced output and color temperature)?
MN10 will underdrive with pair of primary CR123A
Bulb will get about 5 volt while should get 7.5 volt.
 
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