Certified Safety -- Certified and listed by the nationally recognized electronics safety expert UL. Only products with the top quality, workmanship & safety level in the industry can pass the extremely stringent quality tests to obtain this honorable certification. Flawless Compatibility -- Exclusively designed to fit for Lenovo Chromebook laptops (45W, USB C connector). After-sales services: This product is eligible for replacement or returns within 30 days, and the manufacturer provides an additional 12 Months Guarantee Power Specs -- Output: 45W (20V/2.25A); International Voltage Standards: 100-240V, 50-60Hz In the Box -- 1 X Replacement for Lenovo Chromebook Charger