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The LEVITON MFG CO C21-19980-00M is a pull chain interior lamp socket designed for use with medium base light bulbs in standard lighting fixtures. Rated at 660 watts and 250 volts, it provides reliable switching through an integrated pull chain mechanism. The electroiler-style construction is suited for enclosed or exposed fixture housings in residential and light commercial applications. This socket is UL Listed, confirming it meets Underwriters Laboratories safety standards. Electricians and maintenance technicians install this type of socket when replacing worn or failed lamp holders in pendant, porcelain, or utility-style fixtures. Each order includes a package of 5 sockets.
This pull chain lamp socket is used in interior residential and light commercial settings where a manually switched medium base socket is needed. Typical applications include utility rooms, storage areas, garages, basements, and unfinished spaces where a simple pull chain on-off function is practical. The medium base (E26) compatibility covers a wide range of standard incandescent, CFL, and LED replacement bulbs. The electroiler design is common in keyless and pull chain porcelain or phenolic lamp holders used across a broad range of fixture types.
Compatible with medium base light bulbs including standard incandescent, CFL, and LED lamps. Designed as an OEM-style replacement interior lamp socket for residential and light commercial pull chain fixture applications.
Installation should be performed by a licensed electrician or qualified technician in accordance with NEC requirements. Always shut off power at the circuit breaker and verify the circuit is de-energized with a non-contact voltage tester before removing or installing a lamp socket. Ensure the fixture wiring is in good condition and that the replacement socket is rated at or above the wattage and voltage of the intended application. Do not exceed the 660-watt rating of the socket.
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