Whether trying to stay seen during high-traffic hours or getting in an early-morning or late-night ride, the NiteRider Lumina Micro 900 and Vmax 150 Combo is an ideal choice for added riding safety. The Lumina Micro 900 headlight is lightweight, compact, and powerful, producing a lumen output of 900, and features five modes that run from 2 to 60 hours. The rear Vmax 150 taillight, which features a lumen output of 150, features six modes ranging from 5. 5 to 27. 5 hours. This is NiteRider's first taillight with COB LEDs, emitting highly visible light flashing patterns to help keep us seen from behind.