- High brightness and multi light modes: this bike light system uses 2 main LEDs plus 19 surrounding auxiliary LEDs with independent switches. The front light provides 2 x 4 modes and the tail light provides 2 x 6 modes, and they can be used independently or in combination to suit your needs. - Long runtime and battery indicator: the front light is powered by an 1100 mAh battery, while the tail light uses 350 mAh. In Slow Flash mode, the front light can run up to 58 hours and the taillight up to 25 hours. When the battery drops below 20%, the switch indicator flashes green to remind you to charge. - Illuminate your adventures: the ultra-bright LED headlamp delivers high lumen output to light up tents and trails for clear visibility. It offers four white light modes and two red light modes to support safety in various outdoor activities. - Feather-light comfort: weight is 2.54 ounces. The headlamp is designed for long wear with a detachable, washable, adjustable elastic headband that fits both adults and kids for a secure, comfortable fit. - Use scenarios: - Night cycling on roads or trails with front and rear visibility for safer riding. - Camping or tent setup and navigation in dark environments. - Night running or outdoor activities where hands-free illumination and red night vision modes are beneficial.