Supfire S5 5-Mode XP-E LED Flashlight for $3 shipped (1x18650, Black)

Wondering how hard they are driven at and if it would be easy enough to upgrade to XML or XM-L2 ???

Any1 have any ideas?

This might fit well Credit to pilotdog68, “XP-L V6 3A tint for $3.86”

Cheers