Adaptor for using a plug-in type compact fluorescent lamp in an R7s lampholder

An adaptor for a torchiere-style tungsten halogen lamp fixture having a bowl containing an R7s lampholder with two electrical contacts, comprising:

• an adaptor base having two electrical contacts, the adaptor base being shaped and dimensioned to fit an R7s lampholder such that said electrical contacts in said adaptor base form electrical connections with electrical contacts in said R7s base, said adaptor base also being shaped and dimensioned to form a boardholder and to include a heat sink having prongs;
• a dimmable ballast printed circuit board shaped and dimensioned to fit inside said boardholder of said adaptor base in such a way as to form electrical connection when wired with said electrical contacts in said adaptor base;
• an adaptor cover shaped and dimensioned with an upper surface grooved to hold at least one compact fluorescent lamp, said upper surface also containing a screw well and at least one vent opening, and said adaptor cover also having an under surface shaped and dimensioned to fit over the boardholder of said adaptor base in such a way that said compact fluorescent lamp is held in electrical connection with said dimmable ballast printed circuit board, forming a complete electrical circuit which allows said compact fluorescent lamp to be used in place of a tungsten-halogen lamp in said fixture without protruding above the lip of said bowl of said fixture.