Features: This USB lamp head is perfect for fishing, camping, hiking, and cycling. With an adjustable light beam and two color choices, it provides the right amount of illumination for different environments. Crafted from high quality aluminum alloy, this USB lamp head is lightweight yet sturdy, making it suitable for outdoor use. Its compact size ensures easy portability, allowing you to have reliable lighting wherever you need it. Can be powered by a mobile power supply, USB adapter. It offers powerful lighting and is suitable for anyone who loves outdoor activities. Specifications: Connector： USB 5V/DC5.5mm 4.2V With Clip and 1/4 interfaces Wire length approx 1.1meters/43.31in Power： 15W with Switching Lamp Head Diameter approx 4cm/1.57in Material: Aluminum Alloy Light Color: White/Yellow Package Includes: 1PC USB Lamp Head note: Due to the problems of lighting effects and shooting angle， there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.