The lens says "logic power".
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.
Classification: Electric lamps and lighting fittings, nesoi
NSN 6135-01-056-4609
NSN 6645-01-437-9017
NSN 5950-00-394-0786
NSN 5920-01-029-3813
NSN 7035-01-406-6510
NSN 5996-01-428-7813
NSN 6135-00-983-9187
NSN 6610-01-470-0165
NSN 6145-01-104-8186
NSN 4140-01-502-8993
NSN 5975-01-169-6639
NSN 6645-01-121-6952