This is a Nora Track Light Mod. #NTH-413W. (#1720) This is a 3 wire plug system, with ground screw for use with Nora Track system only. Nora Lighting is a member of the American Lighting Association. Lamp Instructions start: lamp holders can be used with track systems. An adjustable contact allows you to select the circuit position. Use a narrow bide screw driver, as shown to adjust the contact. They are brand new and 3 are available. Made in Taiwan. Price is for one. I also only have one bulb, available for $1.00 more. (Please see pix for complete description)

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