Output: DC 16.5V - 3.65A. This is a Replacement Power Adapter with L-tip Connector.- Designed for performance : Our Replacement MacBook Pro charger provides unparalleled protection against over-charging, overheating, high surge (current & Voltage), short-circuit, & discharge.- Features a smart LED light that lights up when the connection is secure (amber light when the notebook is charging & green light when fully charged)- Compatible with MacBook Pro 13" 13.3: MB990, MB991, MC118, MC700, MC724, MC374, MC375, MD101, MD102, MD313, MD314, A1181, A1184, A1185, A1278, A1280, A1330, A1342, A1344.