The luminosity is ok. The bicycle taillight of my son is better visible. Here small reflectors were behind the LEDs certainly helped a lot. The visibility is different depending on the color. At night: the best white, then orange, then red During the day: the best orange, then white, then red I find the service incredibly fiddly. The small button can be pressed hard and we must always all programs by pressing the light to turn off again. And individually in each lamp.
