If you think just because you carry a light, any light, that you are visible, this is a mistake. Lincoln Boulevard alone in Santa Monica at night keeps hundreds of lawyers off the street handling suits filed by pedestrians and bike riders with lights who've been flattened by cars whose drivers could not pick out the lightbeams from the maelstrom of thousands of others that line that boulevard. The best advice is drive, walk, ride, live defensively and take responsibility for staying out of harms way. Thanks.