The KTV Drive Pro+ Rear is a compact, aero seatpost-compatible rear bike light providing up to 150 lumens and six output modes. It offers up to 20 hours of max runtime and a highly disruptive Daytime Flash mode Max 150 lumens / 20-hour runtime in Femto mode Six output modes, including highly disruptive Daytime Flash ensuring maximum visibility during daylight hours Wide Angle Optics for up to 270Adeg of visibility Aero and round seatpost compatible Integrated USB-stick for cable-free recharging IPX7 Waterproofing standards 400 mAh battery capacity Recharge Type: USB Stick (integrated into light) Dimensions: 60 x 41 x 64mm Weight: 50g. Color: Black