• Blind spots are blind because there’s no direct path from any part of the bike to the driver’s eyes. If the design is specifically worried about being in a blind spot, ironically the better design is to concentrate the LED power with narrow beam of light so the bike can cast light further away outside the blindspot.

      Anyway, being in a blindspot is dangerous even for cars that have those ridiculously overpowered bright headlamps. When a driver says the “cyclist came out of nowhere” it just means the driver was driving carelessly. More lamps won’t solve that.