ITEM NAME:For Dell Laptop 90W 19.5V 4.62A Premium Car Notebook Charging DC Power Adapter For Dell Laptop 90W 19.5V 4.62A Premium Car Notebook Charging DC Power Adapter a.imagelink a:hover.imagelink {color:#000006;.(2)over current protection: 120%min. 5)Insulation resistance: DC 500V 100MÃŽ © (minimum). 3) power:90W. pealse be aware of this before placing your order. 3)opera ting relative humidity:595%RH. 2)storage temperature: -20-85.