Wagan UL Certified 5 Amp 110V-240V AC to 12V DC Power Adapter, AC/DC Converter Powers Car Appliances And Accessories At Home, Office Or Hotel Allows High-power 12v Dc Items To Operate On 110v Ac Power Easy Plug-in Use Allows high power 12V DC items to operate on 110v AC power. Works on portable cooler/warmers, heated seat cushion and other DC appliances Simple to use Allows high power 12V DC items to operate on 110v AC power. Works on portable cooler/warmers, heated seat cushion and other DC appliances Simple to use