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General Electric “Panelite” FP12S CW.
Non‑tested but intact, perfect glass, complete electricalconnections:
- fully intact glass (no chips, no cracks)
- original electrodes/leads
- original seal line
- original phosphor coating visible
- back panel fully intact
- no delamination
A Square Fluorescent Lamp — a very early, experimental GE/Westinghouse/HyLite style panel lamp
These were produced in very small numbers in the late 1940s–1950s.They were part of the industry’s attempt to create:
Flat, architectural fluorescent lamps
instead of round or tubular lamps.
They were used in:
Most people today have never seen one.
