What Legoes with What?

[hank]

xref to discussion of the Ultrafire uf10 zoomable 16340

Muto observes:

Just going through some lights of equal diameter and found that the old cheap Ultrafire Focus-590 (18650 light) tail cap fits/threads and works.

Ultrafire uf10 zoomable 16340

Just going through some lights of equal diameter and found that the old cheap Ultrafire Focus-590 (18650 light) tail cap fits/threads and works. Still not as good as wire across the battery to tube, but way brighter than stock. After I get the pill out, will shunt that spring and see if it helps. Later, Keith