“I ride every late afternoon and put this fantastically powerful little light onto flash mode since it is still daylight. By doing this I know I am visible to drivers because drivers do not notice, visually static objects via peripheral vision, they scan the road for other vehicles but cyclists are almost unseen even with lights. By having the flashing headlight on I am noticed, because drivers do look at the cyclists who have a device that highlights eye catching alternating pulse. I am so glad I studied the reviews for this bike light because it is truly a life saver! When the daylight fades this provides powerful illumination and I need this because I am visually impaired in my right eye and it is imperative that I can see the terrain in front of me with clarity. Thank you NiteRider!”