The perfect pair of bike lights for avid cyclists this season. The Micro Drive 600XL and KTV Bike Light Pair from Lezyne feature a high-powered front light with nine lighting modes up to 600 lumens and a rear light with 10 lumens and 20 hours\' runtime.Front light:Dual-LED Rugged aluminium bodyIntegrated cooling finsSide cutouts - for side visibilityNine lighting modesIntegrated USB stick - for cable free chargingStrap mounts to most bar sizes and shapesBlast mode: 400 lumens / 1hr 40mins runtimeEnduro mode: 200 lumens / 3hrs 15mins runtimeEconomy mode: 100 lumens / 6hrs 45mins runtimeFemto mode: 15 lumens / 44-hour runtimeDay Flash mode: 600 lumens / 8-hour runtimeFlash 1 and 2 modes: 75 lumens / 17-hour runtimePulse mode: 75 lumens / 14.5-hour runtimeOverdrive: 600 lumens / 1-hour runtimeMax lumens: 600Max runtime: 44 hoursRecharge time: 2.5 hoursWeight: 97gRear light:Aero-post compatibleIPX7 waterproof ratingFive lighting modesWide Angle Lens - offers 270-degrees of visibilityIntegrated USB stick - for cable-free chargingBlast mode: 10 lumens / 4.5-hour runtimeEconomy mode: 3 lumens / 12.5-hour runtimePulse mode: 10 lumens / 7-hour runtimeFlash 1 mode: 10 lumens / 12.5-hour runtimeFlash 2 mode: 5 lumens / 20-hour runtimeMax lumens: 10Max runtime: 20 hoursRecharge time: 3 hoursWeight: 54g