Special Features:

Lens is type 2 where letters appear black on white background until illuminated and then background appears in color, letters remain black; full face display screen; legend configuration with two lines of engraving; voltage is 28.0+; 800 series light

Properties:

A light, with mounting facilities furnished, designed to convey information of a specific nature concerning the circuit in which inserted. Must include or provide for the use of a lens as a part of it. For items without a lens, see lampholder, and also see light (1), panel.