Universal laptop power adaptors that can automatically select required operation voltage.Suitable for use with most laptops and notebooksInput voltage 100Vac – 240Vac 50/60HzOutput Voltage – Manual 15/16/19.5VOutput Voltage – Auto 14.5 – 20.5VAdaptor plugs5.5mm x 2.5mm, 4.75mmx1.75mm,5.5mm x 1.75mm, 5.5mm x 2.1mm,5.5mm x 3.4mm, 6.5mm x 1.0mmBuilt in IC to detect operation voltage between 15V-20VOperating voltage can be chosen automatically or manuallyLED power on indicatorSupplied with 6 DC adaptors