?Suitable for outdoor sports lovers to do some outdoor activities.<br> <br> Features:<br> Ultra bright LED with 3 modes: Strong brightness， normal brightness， flashing.<br> Aluminum alloy casing with 2 ventilation holes.<br> Rubber bands to install this light to any bicycle.<br> Adjustable elastic head strap for using it as a headlight.<br> The rechargeable batteries with two ways of power interface for the light and your cellphone.<br> Rainproof design for any weather condition.<br> <br> Specifications:<br> Color: Black， Red， Blue (optional)<br> Material: Aluminum Alloy<br> LED Lifespan: 1，000，000 Hours<br> Lumen: 600LM<br> Battery: 4 * 18650 battery<br> Input: 100-240VAC 50/60Hz 0.3A<br> Item size: 4.4 * 4.2 * 3cm / 1.7 * 1.6 * 1.2in<br> Item weight: 111g / 3.9oz<br> Package size: 11.5 * 11 * 10cm / 4.5 * 4.3 * 3.9in<br> Package weight: 465g / 16.4oz<br> <br> Package List:<br> 1 * Bicycle Light<br> 1 * Battery Pack<br> 1 * Adapter<br> 1 * Head Strap<br> 2 * Rubber Band<br> 1 * User Manual (English)<br> <br> Note:<br> Do not disassemble the battery pack， so as not to affect product performance. Thanks.<br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>  <br>