L4 regulation circut

FredM

Enlightened
Joined
Mar 7, 2005
Messages
666
Location
Houston, TX
Is it hard to tell if the KL4 is running in regulation or not?

I am using one with a E1L body and a CR123A and its looks bright.

I switch between the one cell and the 2 cell body and I cannot easily tell a difference in brightness.

I have a simple multimeter is there anyway to tell what voltage is required to run in regulation? Possibly check the resistance of the head?
 
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