Tow NATO military trailers with commercial transport trucks and avoid contravening State and Federal highway regulations. ETC 1224-7 enables the activation of NATO trailer electrical functions normally as they are moved with standard USA transport tractors. Quick and effortless installation with no hard wiring makes ETC 1224-7 easily transferable from one vehicle to another. This electrical conversion box is lightweight and compact at only 15 pounds. This makes practical the mounting of the trailer electrical interface to either truck or trailer depending on where it is needed most. No hard wiring or cumbersome installation is involved.