I am a former Senior Member poster from 8 years ago, until I let my postings lapse, so now I'm a Newbie.

I first got a Planet Bike blinkie. It didn't flash bright enough in daytime riding. Then I moved up (away moved up in price) to a Dinotte 400R. Daytime honks disappeared. Lots of drivers said, "I saw you from a half-mile behind. Nice light."

What Rob DiNotte did was to invent a taillight that enabled distracted drivers to "wake up" to cyclists, in midday sunshine, 200, 400 meters + behind them. Giving them plenty of time to cooly calculate lane shifts, and not hard-brake 25 meters behind a bicycle and get anger-stirring adrenaline rushes.

Rob deserves a Bicycling Hall of Fame award. Other companies have since built daytime visible rear lights, but in 2008, Rob was the original inventor.