Details
Giant's Numen TL1 5 LED Taillight boasts 5 bright LEDs so you get noticed out on the road. If that wasn't enough, you have 4 modes: steady, flashing, patrol, and random modes for high visibility in traffic. And it runs for up to 180 hours. This great water-resistant light also sports 2 mounting options.
Steady - 75 hours
Flash - 120 hours
Patrol - 180 hours
Random - 180 hours