Generic (not Apple-branded) Features & details INPUT: AC 100-240V, 1.5A 50-60Hz; OUTPUT: DC 14.08V-3.05A.Knowing what specific mac air model you have is important.Please check out carefully before purchasing. Replacement charger AC adapter for Mac Book Air 11" 13" from end 2012; compatible only with Mac Book Air (11-inch, early 2015); Mac Book Air (13-inch, early 2015); Mac Book Air (11-inch, early 2014); Mac Book Air (13-inch, early 2014); Mac Book Air (11-inch, mid 2013); Mac Book Air (13-inch, mid 2013); Mac Book Air (11-inch, mid 2012); Mac Book Air (13-inch, mid 2012) Compatible with Mac Book Air 11“and 13”with Model: A1435、A1465、A1466,:MD223,MD224,MD231,MD232,MD711,MD712,MD760,MD761,MJVM2,MJVP2,MJVE2,MJVG2,MQD32,42,52 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