My 2009 Surefire LX2

[Size15's]

I don't think that any of the two-stage lights SureFire has released so far use an inductor rather than resistance.
That becomes viable for the more advanced proto-types SureFire has been considering such as the UA2/UB2/UB3 etc.
I agree that an inductor method is technically better but SureFire have yet to put it into production on any models.

 

[Mister T]

Ok, seems that I was off the track a little bit. But considering the LX2's low level is only 15 lumens, which doesn't require a lot of current to the LED, this seems reasonable. Would be interesting to know how exactly this works. I had a look at the patent I had in mind and found some interesting details of different concepts (e.g. A2 Aviatior). In case someone is interested, here's the link http://www.pk-e.com/pk/Patents/US07116061B2.pdf

 

[Guy's Dropper]

When you say "17670 does not fit", is there any reason it would be too short, even with a battery extender? Or, did you mean that the 17670 is too wide. I forget.... does a CR123A battery have the same width as a 17670 battery?

 

[Chao]

When you say "17670 does not fit", is there any reason it would be too short, even with a battery extender? Or, did you mean that the 17670 is too wide. I forget.... does a CR123A battery have the same width as a 17670 battery?

I didn't explain that clear, the protected 17670 is too wide to fit, but the unprotected 17670 should fits.

 

[Chao]

If you don't want to take the risk, 2x3.0V RCR is safer, and can running anound 30 min in high level

 

[uncle wong]

If you don't want to take the risk, 2x3.0V RCR is safer, and can running anound 30 min in high level

Thank You Vey Much
But izzit possible to use 2 x 3.7V-4.2V ?
Any problem ?

 

[Chao]

But izzit possible to use 2 x 3.7V-4.2V ?
Any problem ?

I heard it was also fine, but I am not sure personally.

 

[uncle wong]

I heard it was also fine, but I am not sure personally.

Thank You Very Much