The Lezyne KTV Drive / KTV Drive+ set is the simplest way to be seen on every ride. The KTV Drive front puts out up to 200 lumens from twin LEDs, and the KTV Drive+ rear uses Wide-Angle Optics for 270Adeg of side visibility. Both run a highly disruptive Daytime Flash mode, both charge straight from a USB port with an integrated USB stick - no cable to lose - and both are IPX7 waterproof.Key Features Front: up to 200 lumens, Daytime Flash mode Rear: up to 40 lumens, 45-hour runtime in Femto mode, 270Adeg visibility Integrated USB stick for cable-free recharging Co-molded rubber bodies, IPX7 waterproof 2-in-1 clip-on or silicone strap mounting; rear fits aero and round seatposts Specs Battery: 400 mAh (each) Front dimensions: 65.9 x 30.8 x 40.3 mm Rear dimensions: 60 x 41 x 64 mm Includes: front light, rear light, silicone mounting straps Not StVZO approved