Vintage NOS Dialco Dialight 120-240V AC/DC Panel Mount Indicator Lamp.  Includes Yellow LED Lamp and Diode for 120-240V AC/DC Operation.  LED is about the same brightness as when used with a Neon Lamp.

** Has internal Resistors about 9K in each leg originally intended for use with Double Contact Bayonet Based Neon Lamps Like NE-48 / B9A (Not Included).

** Will NOT work with Incandescent lamps due to internal resistors.

LED installed in Double Contact Base and is removable if you want to make changes.

Mounts in a 1" Hole with long threads so looks like it will accomodate panel thickness up 1/2 to 5/8" max.  Comes with a lock washer and mounting nut.

Amber Fluted Glass Dome with Chrome Bezel.

Screw Terminals Socket rated up to 75W 125V.  Draws 6-8mA at 120V.

Super Heavy Duty High Quality Indicator.  1978 Date codes on bags.

All but one have factory bag.  Each will be opened so I can check each one prior to shipping.