Suggested resistor values for McE2S

Justin Case

Flashlight Enthusiast
Joined
Mar 19, 2008
Messages
3,797
I checked some old threads such as:

http://www.candlepowerforums.com/vb/showthread.php?t=93062
http://www.candlepowerforums.com/vb/showthread.php?t=58979

Looking for advice on resistor values for the following configurations:

- KL4 on an E1 body, driven by one AW 3.7V cell
- Standard SureFire L4 setup
- The two above configurations, using an OpticsHQ E2 LED replacement head

My interest is obtaining a general utility low setting, in addition to the regular high output. Low setting applications could be for general night time walking around, quick indoor search for keys or whatever without dazzling the vision, etc. I'm guessing, based on measurements of side spill of other lamps, that something around 100-200 lux might do the trick, but I'm not wedded to that if others have different experiences that suggest a different lux value.

It looks like 15 ohms for the 1st config and 22 or 30 ohms for the 2nd config could work, although maybe any hard data on lux values would help.

What about resistor values with the OpticsHQ head?

Thanks.
 
How well would the KL4 head - which is meant for the E series / 2 x CR123A - work on one RCR123 ?
 
the KL4 head being a boost circuit actually runs pretty good, same as running the KL4 on a 17670...but you'll get approx 20-25 minutes of good, solid light before it goes out instead of 50-60 minutes you do on a 17670:ohgeez:

look over the "TW4" threads:thumbsup:
TW4 was originally invented as Z57 + E1e + KL4 using one rCR123a
 
You might want to consider ordering one or two different boards with the switch. They can't be more than a few bucks each, and then you have options. Better than ordering one, finding out it's not quite what you want, and paying shipping on a new board. Swapping out boards is a piece of cake.
-Winston
 
You might want to consider ordering one or two different boards with the switch. They can't be more than a few bucks each, and then you have options. Better than ordering one, finding out it's not quite what you want, and paying shipping on a new board. Swapping out boards is a piece of cake.
-Winston

Thanks. Any idea what the difference is between the two optional rubber boots for the Assembled McE2S FLAT LOTC two stage switch and the Aleph Flat Tailcap. The switch lists an optional "FLAT McE2S Rubber boot cap" for $4, while the tailcap lists an optional "Flat Rubber Boot" for $5.

http://theledguy.chainreactionweb.com/product_info.php?products_id=963
http://theledguy.chainreactionweb.com/product_info.php?products_id=556
 

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