The AURA 45 USB illuminates the four zones up to a distance of about 55 meters with a rich 45 lux and a harmonious light pattern.Safety-conscious cyclists enjoy the integrated brightness sensor, which automatically adjusts the light intensity to the ambient light. This guarantees the longest possible burn time.Key Features• Effectiveness: 45 LUX (15 Lux in Eco mode)• Beam range: 55 m• Burn time: 6,5 h in Standard mode; 21 h in Eco mode• Charge time: 2,3 h• With a brightness sensor that automatically adapts the light intensity according to the ambient light.• Switch on protection (double click for ON)• Splash resistant in accordance with IPX4• 360° adjustable bracket• Tool-free mounting• Integrated micro USB charge function• Two-stage battery/charge indicator• Charging possible during operation• Weight: 88 g (incl. bracket)• Side visibility• Osram LEDWhatÆs included• Aura 45 USB• USB cable