Bike Light - Knog - Frog Twinpack (Headlight and Taillight), Red & White LEDs Knog Frog Twin Pak- 1 Red LED light & 1 White LED Super-bright LED light. BE SAFE - BE SEEN ! Two Frogs ! one red & one white Black Body Super Bright LEDs 80 hours (steady), 160 hrs battery life maximum (flashing), Visible up to 600 metres! Water-resistant, flexible silicon body, integrated clipping feature, quick-release mounting. Note: Safety light only, not a light to see with. Batteries 2 coin cell - IEC ? CR 2032 included