Special Features:

Lens legend reads a1 a1 (symbol dash dash dash) bit-hi; major components: lamp module 1, lens plate 1, color filter 2, lamps 4, module housing 1, plunger stop 1

Properties:

Two or more different types of items having a common mounting or mounted on each other which together forms a portion of a switch but which in itself is not a complete functioning item and cannot be assigned a more definite item name. See also switch section, rotary and contact assembly, electrical.