Tec 1 Flashlight
These lights have a heart of metal, wrapped by an outside made of the highest quality injection molded polymers. The Tec 1 is regulated for the entire time it runs, meaning that you will get a full 250 lumens the full hour+ that the light is on. The tailcap switch is conveniently located; tap for momentary light or press for constant light. Bonus feature: they are waterproof.
The 1” diameter makes this light compatible with many available mounts on the market.