The Cylops 150-lumen Headlamp features COB (Chips On-Board) LEDs, which place more diodes on the same surface area to create brighter output without adding unnecessary bulk. So you'll never be in the dark while camping, taking the dog for a walk, or anywhere you need to light up your path. Includes rechargeable 3.7V 500mAh Li-poly battery and USB cable.<br><br>USB rechargeable plastic headlamp with Versatile clip<br><br>COB/150LM w/ clear lens cover + white LED + red LED<br><br>3.7V 500mAh Li-Poly battery included<br><br>Sensor function included<br><br>USB cable included<br><br>Warning: This product may contain chemicals known to the state of California to cause cancer and reproductive harm. For more information, visit www.P65Warnings.ca.gov.