The Lezyne KTV Drive 10 is a compact, safety taillight with two ultra-bright LEDs. The KTV Drive 10 rear provides up to 10 lumens & three output/flash modes. This makes it absolutely ideal as a basic commuting light to get you seen by other road users, or as a backup to your main lights to add extra visibility. The Lezyne KTV Drive 10 comes with a unique aero & round post compatible design & has an integrates USB (Universal Serial Bus) stick for convenient cable-free recharging. MAX LUMENS: 10 WEIGHT: 41g (without strap) RECHARGE TIME: 3:00