The Helios brake light from M-Wave is battery powered and is multi function. The three functions include steady on, flashing, and brake activation. All of these use the super bright Red LED. To activate with the brakes, just attach the light to your brake cable on road or v-brake bicycles.
- 1 Super Bright Red LED
- Lights up with the pull of your brake lever, attaches to brake cable
- 3 functions, Flashing, steady, brake light
- Suitable to mount with road and V-Brake
- Includes battery (CR 2032)