Description:<br />Nitefighter BT40S LED Bicycle Light is a wide beam and high brightness mountain bike front light. Utilizing four Cree XP-G2(R5) LEDs， four brightness modes， max output 1600 lumen. BT40S model is the ideal illumination gear for mountain biking， touring， commuting， etc.<br /><br /><br /><br /><br /><br />Main Features: <br />Utilizes four Cree XP-G2 neutral white LEDs， max 1600lumens output<br />Powered by four BAK 18650 rechargeable Li-on batteries， 7.4V 5200mAh<br />Uses high quality optical lens with a wide beam angle<br />4-Mode electronic Switch-Low-Med-High-Turbo<br />Digitally regulated output-maintains constant brightness<br />Overheat protection function<br />4 Color and 5 mode LED indicator displays remaining battery capacity<br />Quick to attach and detach using O-ring mounting straps sized for 20mm-35mm handlebars<br />Made of durable aircraft-grade aluminum<br />Premium type III hard-anodized anti-abrasive finish<br />Water resistant: IPX-6<br /><br />Operation: <br />1.Press the tail button repeatedly to change brightness to 30%-50%-75%-100%<br />2.Press and hold the tail button for 0.8 seconds to turn off the light from any mode<br />3.Overheating protection: BT40S led light will accumulate a lot of heat when it is working in turbo output. To avoid overheating， the flashlight will automatically transfer into the high brightness level when the case reaches a certain temperature<br /><br />    Specifications<br />General<br />	 Type: Cycling Front light， Bike light， Bicycle Lights                                                  <br />                        Brand Name: Nitefighter                                                  <br />                        Model Number: BT40S                                                  <br />                        For: Unisex                                                  <br />                        Material: Aluminum alloy                                                  <br />                        Suitable for : Bike， Mountain Bicycle， Road Bike                                                	<br />Dimension and Weight<br />	  Product weight : 0.105 kg                                                  <br />                        Package weight : 0.200 kg                                                  <br />                        Product size (L x W x H)   : 5 x 4.2 x 4.2 cm / 1.97 x 1.65 x 1.65 inches                                                  <br />                        Package size (L x W x H)  : 12 x 10 x 5 cm / 4.72 x 3.93 x 1.97 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Nitefighter BT40S Bike Light， 1 x 18650 Li-ion Battery Pack， 1 x Rack， 1 x US AC Charger， 1 x Velcro Strap， 1 x Lens， 3 x O-ring， 1 x Cable， 1 x English User Manual                                                	<br /><br /><br /><br />                                            <br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />                                                <br />