Cannondale's Hindsite Array Seatpost/Seatstay is an eye-catching rear light that stealthily fastens to your seatpost or seatstay for maximum visibility. The five 1/2-watt LED lights operate in a steady or five flashing modes for up to 150 hours. Constructed of durable silicone, the Hindsite Array is weather resistant and easy to operate.
Run time: 150 hours (flash mode)
Operates 2 AAA button batteries (included)