Have been knocked off my bike twice in the last 12 months. ” sorry mate, didn’t see you ” was the reply on both counts. Now have my 900 lumun light on full strobe even during the day. Filtering through some traffic at some lights the other day one of the drivers wound his window down and started complaining how bright my light was. ” you saw me then?” I asked. ” couldn’t help not seeing you” he said. ” mission accomplished” came my reply with a smile. With that he nodded in agreement, as in ok fare kop.