DESIGN & DETAILS: The perfect tool for anyone who needs a reliable and powerful light source Compact and lightweight Incredibly versatile device with multiple light modes Durable ABS and aluminum construction Water-resistant Turbo mode included which gives you short bursts of power for 30 seconds before returning to the previous light mode Powered by 4 AAA batteries which are included with your headlamp TECH SPECS: Turbo (750 lumens): 30 second intervals* - 85 meters / 278 feet High (250 lumens): 5 hours - 62 meters / 203 feet Medium (80 lumens): 15 hours - 32 meters / 104 feet Low (5 lumens): 60 hours - 10 meters / 32 feet Red (5 lumens): 16 hours - 1 meter / 3 feet