Runtime: High (1800LM) 1.5hrs, Middle 3.5hrs (900LM), Low 7hrs (450LM), Smart (100LM>450LM with flash output in Day) 40hrs; (900LM with steady output at Night) 3.5hrs, Flash (100LM) 65hrs
Battery: Li-Ion polymer battery (6400mAh)
Water resistance: IPX6
Certifications: ANSI-Standard FL-1