Cateye Volt 300 Headlight. The Cateye Volt 300 is an excellent, versatile choice for all types of riders. It features a 300 lumen light output, USB charging, and five different modes. It can be mounted to your handlebars or on your Bicycle Helmet, and the battery back is modular, so you can pick up some spares to use on those long ride when recharging isn't an option. Its small size, lightweight, and high light output make it ideal for commuters, road cyclists, and anyone who might still be out when daylight starts to fade.