SF E1L discharging

hello
i`m looking for a discharge graphic of surefire e1l (KX1 head) on high mode
i`d like to look at stabilization on 45 lumens
regards

Hi asket32420, and welcome to CPF!

Not a true runtime graph, but I have measured 3h 30m practically stable output(~90% of initial) with E1L and KX1 head and 75% output until 4 hours, using a primary, I don't remember the brand of the cell. Also I measured 90min at the same output with a Tenergy LifePO 123.

Look here, I know it is not the KX1 head, but it will be close. I have had the Kx1 and Kx1B heads and they are very similar in current draw. http://www.candlepowerforums.com/vb...L-2013-model&p=4250208&viewfull=1#post4250208

Swedpat said:

Hi asket32420, and welcome to CPF!

Not a true runtime graph, but I have measured 3h 30m practically stable output(~90% of initial) with E1L and KX1 head and 75% output until 4 hours, using a primary, I don't remember the brand of the cell. Also I measured 90min at the same output with a Tenergy LifePO 123.

Click to expand...

hi
thanks
3.5h on 90% then 4h on 75% ?
totaly About 7.5h to 75% and then lower?
or
you mean that just 4h until 75% from start? and what then?

tonkem said:

Look here, I know it is not the KX1 head, but it will be close. I have had the Kx1 and Kx1B heads and they are very similar in current draw. http://www.candlepowerforums.com/vb...L-2013-model&p=4250208&viewfull=1#post4250208

Click to expand...

thanks
but it just ~2.5h on 100-90% and then about 3.5h until 0%
about 6 hours at all!!
SF marked on website 8.5 hours until 50% if i`m not mistaken :shakehead

asket32420 said:

hi
thanks
3.5h on 90% then 4h on 75% ?
totaly About 7.5h to 75% and then lower?
or
you mean that just 4h until 75% from start? and what then?

Click to expand...

I mean 90% until 3,5h and then between 3,5 and 4 hours it dropped to 75%. After 4 hours it continued fast to drop to much lower levels. 25% diminishing is likely not noticable for the eyes so therefore I think it's fair to state 4h with a "practically stable" output.
I wish ANSI/NEMA standards would use 75% as the mark instead of 10%.