The HL-EL135 front light offers three LEDs with OptiCube lens technology for a wider, 150 candlepower beam is the perfect everyday commuter safety light. Powered by two AA batteries offering two modes with 80hrs run time in constant mode and 320 hrs run time in flashing mode. The ORB rear light pairs a sleek, compact design housed in an alloy chassis. The lens itself serves as the operating switch and is protected from inadvertent triggers while still allowing for side visibility. Attaches to seatpost, helmet or bag with the heavy-duty rubber band. Powered by two CR2032 batteries offering 3 modes with approx. 100 hrs run time in both rapid flash and slow flashing modes, with 50 hrs in constant mode. A perfect light set for the urban explorer or the daily commuter.