[keep away from danger]: The rechargeable USB front cable running light has a cool white light with a brightnof 250 lm and a red 3-LED warning light to illuminate the front 20-meter range.[USB rechargeable]: Built-in USB rechargeable battery, can be used for 2 - 5 hours. 5 LED display to show the battery capacity: 120 beam angle wide angle and 3 optional modes and 3 modes: High (250 Lm) / Low (90LM) / Flash (180LM).[IP65 Waterpoof Rating]: Safe for water spray when running in the rain.[Convenient to use]: light and flexible, adjustable strap, comfortable to wear; Suitable for most people of any body shape.[Application]: Suitable for running, walking, running, etc.Specification:Material: plasticLED light: 8 red LEDs + 1 cool white LEDLight mode: beam / low beam / flashLuminous flux: 250 / 90LM / 180Beam angle: 120 degreesCharging time: approx. 5HWorking time: 2 - 5 hoursWater resistance: IP65Size of the front light: 9 * 10 * 2.2cm / 3.5 * 3.9 * 0.9 (L * W * H)Backlight size: 7.1 * 11.7 *, 1.7m / 2.8 * 4.6 * 0.8 (L * W * H)Package:1 x night running light1 x USB charging cable