Safety - Certified and listed by UL, the US recognized safety standards, passed UL's stringent tests to ensure you and your devices' safety. Compatible with Lenovo Chromebook N22 N23 N42 N24 N42-20 N42-20T N22 Winbook N22-20 Touch 80SF 80S6 80VH 80YS 80UR 80US 80VJ 81AF 81AF0019US 81AF001AUS Laptop. Only for amperage equal or less than 2.25A. Output Max - 20V 2.25A 45W Input Volt Range - 100-240V Package - 1 * power adapter, 1 * AC Power Cord. Guarantee - Within 30 days of purchase, we offer a no-questions-asked replacement guarantee and a 360-Day-Quality-Guarantee by the Manufacturer.