The City Rover is a USB-rechargeable headlight with a powerful lithium-ion battery and a darkness-destroying CREE LED bulb. Its precision reflector provides superior luminous guidance to the front and side for up to 20 hours of ride time. The City Rover will run for an additional 15 minutes in low-power safety mode after the low-battery indicator light comes on. - Additional 15 minutes in low-power safety mode after low-battery indicator light comes on - One second delayed power switch to prevent accidental on/off - Light wakes up in last mode used - Micro USB charging cord included; 5.5-hour charging cycle - 5 Modes (burn time): Steady High 700 Lumens 2 hours, Steady Medium 350 Lumens 4 hours, Steady Low 200 - Lumens 8 hours, Pulse 600 Lumens 16 hours, Daytime Flash 600 Lumens 36 hours