The Vis 180 delivers an SUV sized output from a compact lightweight package. At 10 times the light of the most powerful AA taillights, combined with brilliant amber sidelights, the Vis 180 lets the cars know you belong on the road too. with a tool-less mount, locking mount clip for frame or bag, and convenient cell phone micro USB charging, you will never go back to a blinkie again. Lumen output has been increased this year to 50.