Suitable: D2F/D3+/D2+ Easy installation: Ebike headlight includes two connectors, the female one is the input connector that connects with the electric bike controller or battery, the male connector is for ebike rear light. Ebike tail light with one female connector, just connect it with the headlight’s male connector, then the installation is finished. Great design: Electric bike headlight with switch ON/OFF, one button turns ON/OFF headlight and rear light, don’t need your extra switch anymore. Increase your safety: The e-bike front light and tail light are powerful, increasing your visibility to the vehicles surrounding you in the dark. Electric bicycle headlight output is focused, looks bright, and does not dazzle other participants on the road. The taillight is Visible 200 degrees, meaning the light is not only visible from the rear, but on almost all sides.