What can I do if the SpellBrite sign is greater than 9 ft from a power outlet?

A 10 ft power extension cable is offered to allow you to extend the distance from the AC power outlet to the sign.  It connects to the power supply cable (which is 9 ft) on the DC side to the sign…thereby allowing you to be 9ft + 10ft extension for a total of almot 20ft from the AC outlet to the input of the sign.  Multiple power extension cables can be used.