Wide Compatibility: The 45W Tip MacBook Air charger is fully compatible with the 2012-2017 13-inch and 11-inch MacBook Air models. Compatible with A1436, A1465, A1466, MD22314, MD231/2, MD760/1, and MD711/2. Charging Function: The LED indicates the charging status. A bright light means the laptop is on display, and a green light means it is fully charged. The built-in heat sink dissipates heat and prevents overheating during charging. This ensures the safety of your MacBook, so you can use it with confidence. Safety and Protection: The replacement charger is made of the highest quality materials and includes intelligent protection functions against overvoltage, overpressure, overload, short circuit, and automatic restart. CE/FCC/RoHS certification. The charging connector ensures safe disconnection of the cable in the event of an overload and prevents fraying or wobbling over time. 45W MacBook Pro Charger: Installation: AC 100-240V, 1.5A, 50-60Hz; Connection: DC 14.85V – 3.05A, 45W.