Please recommend a driver for my project.

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Last seen: 8 years 10 months ago
Joined: 10/02/2011 - 19:11
Posts: 30
Please recommend a driver for my project.

I am going to build a light which will run a single xm-l emitter.

I am primarily concerned about battery compatibility and run time rather than extremely high lumens. 

I'd rather have a single output mode.

I will primarily use an 18650 battery, but if it comes down to it, I want to be able to use 3AAA in a pinch or possibly 2xCR123 with an adapter tube.


I was thinking about using a single 1.4amp amc7135 driver.  Will this work with the above battery configurations?  Will I need some kind of buck/boost driver instead?

Thank you kindly for your input.

Last seen: 9 months 1 week ago
Joined: 06/03/2011 - 08:47
Posts: 1454
Location: London

Should be fine for 18650 and 3*AAA but you'll need one that can handle up to 6v if you want to use 2*CR123's or up to 8.4v if you want to use 2*16340's.

"You are making progress if each mistake you make is a new one."

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brted's picture
Last seen: 1 week 4 days ago
Joined: 01/12/2010 - 19:44
Posts: 2371
Location: Atlanta

Shiningbeam uses that driver and says you can use 2xCR123A with it, but not 2x16340's. It's not efficient with 6V since the regulators will burn off the extra voltage, but it can work.