Bell Sports Radian LED Bicycle Light Set Radian 450 Twin Hi-Output LED light emitting diode bicycle light set. Compatible with most handlebars or seat posts. Integrated mount with hidden hardware reduces theft. Optimized reflector throws long, bright beams. Features a tough waterproof design. Includes hex wrench for installation. Head light 30 lumens, 66 foot beam distance, 12 hours run time on steady setting, 30 hours run time on flash setting. Tail light 4 lumens, 46 foot beam distance, 21 hours run time on steady setting, 32 hours run time on flash setting. Tested to FL-1 standards. Requires 4 CR2032 batteries for the head light and 4 CR2032 batteries for the tail light, not included. Black. Type LED, Light Color Head Light White/Tail Light Red, Battery Type CR2032, Batteries Included No, Pkg Qty 1, Package Type Card