Consider the Azonic Sulu USB Light Pair your late night cycling companion for cruising to pubs downtown and coming home after dark. The rechargeable USB batteries in both lights go from dead to fully charged in three hours flat. They last 2. 5 hours with a solid beam, giving you plenty of battery life for cruising after dark. Flashing modes long and rapid flash last up to five hours, enhancing safety in traffic congested areas. The front and rear lights use compact LEDs to illuminate dark city streets and trails, providing 15 lumens in the front and seven lumens in the back. Both lights have black aluminum housing for a sleek look with durability to withstand daily rides and waterproof seals for extra weather protection. Plus, you'll appreciate the included rubber quick release mount for easy attachment to your handlebars and seat post.