G4 Base Porcelain Lamp Socket with 1/8ips Female Threaded Brass Skirt with 24in Long 18/1 Teflon Wire Leads. RATED Maximum 50W, 24V. UL Recognized. Parts Included (1) NEG4F - 5/16in Slip With 8/32 Locking Set Screw X 1/8ips - Unfinished Brass (1) SOG4 - G4 Bi-pin Type Porcelain Socket