NICKEL KEYLESS SOCKET.
Nickel-plated keyless socket-single circuit
(you need a separate switch to turn off and on).
These work with "regular" bulbs.
Bottom cap has 3/8" threaded hole that works with 1/8 IPS pipe.
No set screw.
$2 minimum charge orders less than $20.
$.50 packing charge for each parts box.