Light Socket
Etlin-Daniels have a comprehensive list of light socket (lamp holder) : CFL Fluorescent Light Socket, Linear Fluorescent Light Socket, High Output Fluorescent Light Socket, Turret Lamp Holder Light Socket, Halogen Light Socket, Miniature Lamp Holder and Light Socket Adapters. That works great with every lamp base and type includes: Bayonet, Candelabra Bayonet, T3, G4, G23, G24, T5, T8, T10, T12 and more.