The Hoku is a user programmable tail switch activated flashlight based on a 10440 (AAA sized) flat or button top 3.7V lithium ion cell that consists of 3 main components, the body, bezel, and the light engine.
Specifications:
- Diameter : .63"
- Tail Diameter : .70"
- Body Length : 3.6" Reflector Bezel, 3.3" Mule Bezel