^^^^^^^^^^^^^^^^^^ Low end power source, only maybe good for a phone, maybe low draw Laptop. I have an Inverter U plug into lighter, will run a laptop.
IF U WANT power, buy you a full sine Power Inverter. They come in all sorts of various sizes. U can even wire in if U want, or keep truck running and clip on battery. Only way to get real Power to run ne thing. Just think. Even a 4 amp circuit only good for a 440W appliance. (Spent too many years in Europe.) (Use this to figure what needed: AMPS X VOLTS === watts of appliance)..