Nebo Einstein 750 Headlamp

750 lumen headlamp with five light modes: Turbo (750 lumen, 30 second intervals, 278'), High (250 lumen, 5 hr, 203'), Medium (80 lumen, 15 hr, 104'), Low (5 lumen, 60 hr, 32'), and Red (5 lumen, 16 hr, 3'). Turbo mode is designed to give you short bursts of power when you need it most. After 30 seconds, the light will return to the previously used mode to prevent the light from overheating and protect the battery. Turbo mode can be reactivated at any time.