About this item Input: AC 100-240V, 50-60Hz; Output: DC 16.5V-3.65a Replacement charger power adapter for Mac book Pro 13' After 2012 with model: a1425?a1502,Repalce charger A1435 Compatible with Mac book Pro 13 inch:md212, MD213, MD662, ME864, ME865.ME866, Mgx72, Mgx82, Mgx92, MF839, MF840, MF841, MF Led light provides status info: an amber light lets you know that your notebook is charging, while a green light tells you that you have a full charge Service: after sales 24 hours online, if you have any questions, you can contact us and solve them for you at the first time