The CatEye AMPP 1100 is a light for all those dark and fogggy weather conditions!It's Bright enough to illuminate even the darkest of country lanes, with an impressive 1.5 hour runtime at full power brightness. The runtime indicator gives you constant updates on your lights battery life too, meaning you'll never get caught in the dark unexpectedly with no power left. Keeping you safe and seen.KEY FEATURES1100 Lumen at maximum output for 1.5 hours.Twin Opticube lens technology for supreme light distribution on to the road.Tough, scratch resistant ADC12 lens and LED front section, with a lightweight polycarbonate encased rear battery section.FlexTight bracket: suitable for bars up to 35mm in diameter and selected aero bars.220% larger side lens for a significantly wider beam and enhanced side visibility from side traffic.Wide connecting baseplate with push button activation for greater stability and easy removal from the FlexTight bracket.Double click to High mode, Single click returns to previous mode.Light Mode Memory after on/off selection.Recharge time: 3-5 hrs via USB charging cable provided.Product Manual and Instructions can be found on Cateye® logo above.Light Display ModesHighest: 1100Lm: 1.5 hoursMedium: 800Lm: 2 hoursLow: 400Lm: 4.4 hoursDaytime Running: 400Lm + 1100Lm: 6.6 hoursFlashing Mode: 200Lm: 50 hoursBattery Indication ModesPower button constant runtime indicator: Blue +50% / Yellow 50-30% / Red 30%-0%Technical SpecificationsBattery: Li-Ion 7.4v 2500mAhWaterproof rating: IPX4Weight: 200g