Black Diamond Gizmo Headlamp Ready to go when you are, the new slimmer and more powerful Gizmo is usable in more places than you can imagine 2 single power LEDs offer compact, proximity lighting at 35 lumens (max setting) Uses 2 AAA batteries and powers off after 2 hours to avoid accidental battery drain Protects against splashing or sprayed water from any angle (IPX4)