Triple your visibility from the rear Turns turn signals and taillights into a three run/brake/turn signal light combination When you use a turn signal, the other signal remains a running light and the brake remains a brake light Works with incandescent, halogen or LED bulbs For rapid flashing, combine with our Metric Flash Pro module Comes with easy-to-follow instructions and all necessary connectors For use on all Metric and European motorcycles except BMW models with integrated brake lights.. MODULE,SIGNAL ILL MET