The Volt300 is a USB rechargeable headlight that features quick-change cartridge battery and 300 lumen output in compact design. This light features five modes: High, Normal, Low, Hyper Constant and Flashing. The Volt300 can be mounted on or under the handlebars or on the helmet. Spare cartridge batteries, ideal for long rides and commuting, and charging cradle are available as add-on parts and can be changed safely and easily without any additional tools. Cat Eye Rapid X Rear Light. More than a simple lamp, the Cat Eye Rapid X is best described as a 25-lumen ultra-bright LED strip that will get you seen from virtually any angle. It's Lithium Polymer battery offers USB-rechargeable convenience and helps make the Cat Eye Rapid X very economical to run.