Quad Loop Filament A23 Nostalgic Edison Light Bulb. Our vintage quad-loop reproduction bulb is a masterpiece. Featuring a slight amber-tinted glass with a tip on top of the bulb typical of early 1900's manufacturing enhances the antique look of this bulb. The quad looped tungsten filament creates a warm welcoming glow that should be enjoyed behind a clear shade or a bare socket.
A23 stands for the shape and size of the bulb (glass). It is the bigger of the 3 sizes. A19, A21, and A23
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