The Blackburn Mars 4.0 Rear Bike Light is Blackburn's most powerful rear flasher. Featuring a 1 Watt ultra-bright red LED and 2 Amber side LEDs for side visibility, this rear light will make sure that you're seen from all angles.
1 Watt ultra-bright red LED
2 Amber side LEDs for side visibility
3 mounting options included: belt clip, seatpost clamp and reflector/rear rack mount
2 AAA batteries included
No tool battery installation
50hr steady, 150hr flashing runtimes
Blackburn's most powerful rear flasher