USB rechargeable let you say goodbye to batteries. intelligence IC can prevents overcharge or over discharge and extend battery life. modes will automatically adjust the brightness based on ambient light, with no manual operation required. Fit for camping, hiking, long-distance biking, and daily use. Features - Color: Black. - Material: ABS. - Size: 10.70 x 3.50 x 3.30cm/ 4.21 x 1.38 x 1.30 inch. - Brightness: 450 lumens. - Battery life: about 5 hours under strong light. - Battery capacity: 2000 mAh. - Range: 100-200 meters. - LED lamps, with a wider angle of view, could maximum visibility on the road, street, or on for your cycling safety. - The bike light set is versatile enough for cycling, hiking, camping, or any outdoor activity and can be used as an emergency flashlight. - The product is made of high-grade engineering plastic, which is strong, anti-fall, and wear-resistant. - modes will automatically adjust the brightness based on ambient light, with no manual operation required. - Also, a with 5 different lighting modes is practical to meet all needs, including , high light long bright, low light long bright, SOS, high-speeds flashing. Package list: 1 x light 1 x bracket 1 x usb data cable 1 x mat 1 x manual