... Gateway, HP, IBM, Lenovo, Panasonic, Samsung, Sony, Toshiba, Winbook . How to use:1. Before plugging anything in, and with your notebook power off ... input it should have. (Call the manufacturer if you can't find this information.)2. Set the switch on the adapter for ... 12, 16, 18, 19, 20, 22, 24VWe are professional manufacturer in universal laptop adapter, travel adapter, power charger and car inverter ...