Engineered to be seen day and night, the incredibly slim Cygolite Hotrod Front and Rear combo light set radiates a powerful 110 lumens forward (white) and 50 lumens backwards (red). The pair's continuous array of LEDs penetrate broad daylight with powerful flashes and radiates an extra wide glow to be seen at night. Every bit the road cyclist's light set, its low profile flexible mounts are designed for most standard and aero styles.