Modes: AA batteries-High (600 lumens, 7h runtime); Medium (180 lumens, 18h runtime); Low (25 lumens, 60h runtime). Li-Ion-High (730 lumens, 3h 30m runtime); Medium (205 lumens, 10h runtime); Low (25 lumens, 30h runtime). Spot to flood. Adjustable double headstrap. Rear-mounted battery pack. Electronic lock-out mode. Low battery indicator. Last light. Quick off. Requires (3) AA batteries (included), or (1) Lithium battery (included). Polymer construction. Color: Black. Boxed with hanging tab.