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.Small, compact and rechargeable. NUGGET II is the reliable and cost-efficient tail light with very good visibility all around.Key Features (Aura 45 USB) 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 LEDKey Features (Nugget II) 400 m visibility range 2 modes: standard, High power Burn time: 5 h (Standard mode), 2 h (High power mode) Charge time: 2 h Tool-free mounting with O-ring bracket Integrated micro USB charge function Side visibility Two-stage battery/charge indicator Splash resistant in accordance with IPX4 Weight: 24 gWhats included Aura 45 USB Nugget II USB cable