This LED light has a 1600 lumen output with 7 modes and tri-focus to optimize the light output. The pattern it creates is ideal for high speed and we recommend this light for class 3 electric bicycles. We also like the automatic day/night sensor that adjusts the brightness of the light. One of the most impressive features is how long the light will last. This light will last for up to 148 hours on a full charge. Universal fit with tyhe included secure strap.