The Cateye Orb front lightpairs a sleek, compact design housed in an alloy chassis. The lens itself serves as the operating switch & is protected from inadvertent triggers while still allowing for side visibility. The Cateye Orb is a great backup or emergency light that can easily be fitted & removed from your bikes when you need it. The Orb can also be used during the day to increase your visibility to other road users. Simple, compact & lightweight Easy switch operation Side visibility Versatile heavy-duty rubber strap mount CR2032 battery x 2 Long runtime 3 modes Mode: Output, Runtime Constant: 50 hrs Fast Flashing: 100 hrs Slow Flashing: 100 hrs