Lampholder Medium base porcelain socket with nickel plated copper screw shell.
Aiming 90 degree vertical aiming capability and 358 degree rotation.
Adapter

• Copper alloy contacts provide precise spring action
• True, positive electrical ground
• On/off switch included
• Patented embossed polarity arrows on bottom of adapter
• Spring-loaded locking latch with embossed polarity arrows secures trac light to trac
• Compatible with both Trac-Lites and Trac-Master Trac
• "Pull-up" contact to up position for use on Trac-Master two-circuit trac.

Labels UL/CUL listed.