I attached the Whelen to the IQ-160 and the flicker is noticeable from the periphery, not so much when viewed directly. The Whelen is damn bright when viewed straight on. I don't have any riding experience with it on, as my bike is now parked till March. I think the stock LED tail light on my bike isn't all that bright on bright days, so the Whelen operating as a running and brake light should be good. I have it recessed below my Givi topcase rack so I will get my riding buddy to give me his feedback once we're back on 2 wheels.