The AMPP 1100 uses a compact twin-LED design to powerfully light the way ahead, whatever the terrain throws at you. With features to help you identify the battery life Power button constant runtime indicator: Blue +50% / Yellow 50-30% / Red 30%-0%. The ability to run at 1110 lumens plus for 1.5 hours, large side lenses for coverage at all angles. A tough case & scratch resistant lens means this light go stand up to & ensure you see the terrain around you. Key features 1100 Lumen maximum output for 1.5 hours Twin Opticube lens technology for supreme light distribution Tough, scratch resistant ADC12 lens & LED front section, with a lightweight polycarbonate-encased rear battery section Flex Tight bracket – suitable for bars up to 35mm diameter & selected aero bars 220% larger side lens for a significantly wider beam & enhanced side visibility Power button constant runtime indicator: Blue +50% / Yellow 50-30% / Red 30%-0% Wide connecting baseplate with push-button activation for greater stability & easy removal from the Flex Tight bracket Double click to High mode, Single click returns to previous mode Light Mode Memory Recharge time: 3-5hrs, up to 55% faster than the Volt 1300 Battery: Li-Ion 7.4v 2500m Ah Waterproof rating: IPX4 Weight: 200g, 20% lighter than the Volt 1300 This Light is great for seeing the terrain around you essential for both rural night riding & off-road night rides.