Compatible with :Lenovo ThinkPad Edge E531 AC Power Adapter / Charger - 20V/4.5V/90W  Specifications: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

Compatible with :Lenovo ThinkPad Edge E531 AC Power Adapter / Charger - 20V/4.5V/90W  Specifications: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