Check out our VIDEO on the left side and take a quick tour of AstroAI Converter: Universal usage 7.78ft long10A 120W AC 100-240V to DC 12V allows any 12V car accessory to be used with a household electrical outlet SAFETY GUARANTEE: Built-in features and premium materials protect against Over Charging, Short Circuits, Over Powering, Over Current, Overheating, Over Discharge, Over Voltage UTILITARIAN DESIGN: The AC to DC Converter integrates with Portable Air Compressors, Car Fan, Car Refrigerators and Coolers, Vacuum Cleaners, Dash Cam, Air Purifier and more PLUG AND PLAY: Just plug the 110V to 12V Converter 10A into a power outlet and your device to quickly use your portable products wherever you may need them PROFESSIONALLY CERTIFIED by CE, FCC, and RoHS. Attention! Not designed or intended to charge batteries.