External power supply
External power supply means an external power supply circuit that is used to convert household electric current into DC current or lower-voltage AC current to operate a consumer product. However, the term does not include a power supply circuit, driver, or device that is designed exclusively to be connected to, and power -
(1) Light-emitting diodes providing illumination;
(2) Organic light-emitting diodes providing illumination; or
(3) Ceiling fans using direct current motors.
10 CFR § 430.2
For purposes of this part, words shall be defined as provided for in section 321 of the Act and as follows -