You can put a tl-3 bulb in it and run two 18650's in it for 2 hours of runtime.
tl-3 bulb is rated for 211 lumens.................stinger is 115.
I found this thread and want to modify my stinger. Which particular 18650 battery did you use, and where did you get them? Were you able to use the cradle charger that came with the light or did you have to get a separate charger.
Thanks
