Tapped 4/36-F x 4/36-M. Length does not include male portion of thread. Also available in 1/2" length.
Rated 660 Watts, 250 Volts
This knob fits our halogen dimmer switch ( SKU # 3220).
Rated max. 660 Watts, 250 Volts. UL approved.
NOTE : When using this reducer in a 3 way mogul socket, you will lose the 3 way ability. Your bulb will light on only one level.