ELECTRICAL BALLAST POWER SUPPLIES

Brand	Owner	Address	Description
SPARTAN	SIMKAR	700 Ramona Avenue Philadelphia PA 19120	electrical ballast power supplies for fluorescent lamps and high intensity discharge lamps;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A power supply keying method for use with an electrical apparatus includes defining a plurality of power supply classes; associating with the plurality of power supply classes a plurality of power supplies, each of the plurality of power supplies including a power supply housing having a unique keying arrangement corresponding to one power supply class of the plurality of power supply classes; and providing in the electrical apparatus a power supply receptacle for receiving at least one power supply of the plurality of power supplies, the unique keying arrangement of the power supply housing in conjunction with the power supply receptacle permitting reception of a particular power supply of the plurality of power supplies into the power supply receptacle only if the power supply class associated with the particular power supply has power supply electrical characteristics that satisfy electrical power requirements of the electrical apparatus.