5 Modes Including Day Flash The Powerful 30 lumens headlight from Azur will help keep other road users alert to your presence. It has 4 Super bright red LEDs, with 5 modes: 100% Brightness, 50% Brightness, Flash, Slow pulse, Day flash to enhance your visibility and run time. Safety and Convenience Powered with a lithium polymer battery, at a steady 30 lumens, you can expect 2 hours run time, or if on flash 3.5 hours, and on Day flash up to 6 hours. There is a low battery indicator, and with only 3 hours charge time required, it is super convenient. The bracket is secure on your bike and quick and easy to remove for charging or to move between bikes. Rear Light 30 Lumens Light weight and compact Short charge time Battery: lithium polymer battery 3.7V/300mAh Micro-USB Cable Low battery indicator Charging time: 3hrs Quick release tool free bracket Run Times 100% Brightness - 2hrs 50% Brightness - 3hrs Flash - 3hrs Slow pulse - 2.6hrs Day flash - 6hrs In The Box Nano USB 60 Lumens Head Light Mounting Bracket Micro USB Charge Cable