Compatible with :Lenovo ThinkPad X1 Carbon  AC Power Adapter / ChargerSpecifications:Input Voltage : 100V-240V Output Voltage : 20VOutput Power : 4.5A, 90WDC Tip Size : Rectangle USB Type with Yellow Tip with Pin InsideOver voltage protectionOver temperature protectionShort-circuit protection

Compatible with :Lenovo ThinkPad X1 Carbon  AC Power Adapter / ChargerSpecifications:Input Voltage : 100V-240V Output Voltage : 20VOutput Power : 4.5A, 90WDC Tip Size : Rectangle USB Type with Yellow Tip with Pin InsideOver voltage protectionOver temperature protectionShort-circuit protectionPackage included :1 x Lenovo AC Power Adapter/Charger 1 x Power Cable  Type : UK 3-PIN with Fused