Brass Light Socket - Plated - 3-Terminal - 2 Circuit - Turn Knob - Medium Base Socket - 1/8 IPS - PLT 90-421
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<b>[Product Information]</b><br>
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<li>Medium Base Complete Socket.</li>
<li>Two circuit system controls another socket wired onto the third terminal.</li>
<li>Aluminum Shell Incandescent Lampholder bright gold finish</li>
<li>1/8 IPS Tapped Bushing on bottom cap</li>
<li>Not the same as a 3-way socket, this socket is for controlling 2 light bulbs with one socket.</li>
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