They list these specs:
INOVA T3
3 Watt High Powered White LED
Black Hard Anodized T6 body with knurled texture
Lanyard hole
Water resistant
Up to 200' effective range
Intelligent power regulating circuitry
Up to 2 hour burn time
Uses two lithium 123A batteies (included)
Tail cap button control with twist lock out
Dims: 5.9" X 0.98" diam