The NU25(400L) is back lighter and more powerful than ever with a dual-beam spotlight and floodlight for a combined 400 lumen light that can reach a distance of 64 meters. Equipped with an upgraded unibody optical lens system switch freely between a primary spot LED, offering three brightness settings, to the flood LED for even wide illumination, ideal for close up tasks and reading. Alternatively, switch to the dual red auxiliary LEDs and protect your night vision or a long lasting signal light. The NU25(400L) is rated IP66 water resistant, features a bold new aerodynamic unibody design that efficiently dissipates heat. USB-C FAST CHARGING The NU25(400L) has a built-in 650mAh rechargeable battery that can achieve a maximum runtime of 45 hours on its lowest setting. Now with an integrated USB-C port the NU25(400L) fast charges to full in just 1.5 hours. A power indicator tells you when it's time to charge while lockout mode prevents accidental activation. The intuitive dual button interface puts the controls right at your fingertips so you have more time to enjoy the surroundings. NEW STRAP DESIGN The NU25(400L) is designed by Nitecore to be even lighter and more comfortable for outdoor users and enthusiasts. The rear plate of the NU25(400L) has two latches that snap down on the headband allowing for easy detachment for cleaning and maintenance. The headband portion is lightweight, elastic, and comfortable with the thick silicone band for enhanced grip.