I like green GITD tailcaps and lens o-rings in my P60 lights. The green silicone clicky covers (https://www.dealextreme.com/details.dx/sku.5714) and o-rings (https://www.dealextreme.com/details.dx/sku.3458) are inexpensive at DX, but the o-rings are too small for lenses in P60 lights. I was unable to locate larger o-rings that were thin enough for a lens o-ring application.
All elastomers including silicone are subject to "fatigue" if stretched for long periods, so I tried stretching one of these over the head of a larger thrower like a WF-600. After a day, the o-ring is about 28mm OD and fits most of my P60 lights.
All elastomers including silicone are subject to "fatigue" if stretched for long periods, so I tried stretching one of these over the head of a larger thrower like a WF-600. After a day, the o-ring is about 28mm OD and fits most of my P60 lights.