USB Sirius 50 Lumens Tail Light

- 50 Lumens \n- 4 Lighting modes \n- Charging and low battery indicator \n- Water Resistant \n- Rechargeable lithium-polymer battery \n- USB rechargeable \n- Charge time 2-3hrs \n- Tool free bracket \n- Automatic wake-up function \n \nAutomatic wake-up function: Light enters sleep mode after 4 minutes, when vibrations are detected from riding the light returns to the original mode. \nTo deactivate, press the power button for 10 seconds when the light is off. \n \nTo turn light on press the power button 2 seconds. \nTo change modes press the power button while the light is on. \n \nRuntimes \n- 100% Brightness - 3hrs \n- 50% Brightness - 6hrs \n- Flash - 6hrs \n- Pulse  - 16hrs