Interchangeable driver systems including at least a driver and a receptacle are disclosed. The receptacle provides a compartment, space, or other connection point for a power input as well as connecting structure that releasably and interchangeably connects to the driver. The driver has complementary electrical and mechanical connecting structure. The electrical and mechanical connections between the driver and the receptacle are such that when a mechanical connection between them is made, an electrical connection is also made. The receptacle may take the form of an enclosure that surrounds a substantial portion of the driver, or it may take the form of a short base with a socket that receives a connecting portion of the driver.