The Serfas UTL-6 Thunderbolt USB Bicycle Tail Light gives you style & safety in one high-powered & affordable package.
Being seen on your bike at night never looked so good with Serfas' Thunderbolt Taillight. This USB rechargeable gem comes with 35 lumens of firepower while giving riders' several different rear facing mounting options. The 30 micro-LED strip will let your presence be known to cars and bikes alike. Charge up, light up & get riding safely with the Thunderbolt.