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Wabash WWII Blackout Light Bulb

Manfacturer: Wabash Appliance Co.
Lamp: Speciality incandescent
Wattage: 25 watts
Voltage: 120 volts
Bulb: ST-17
Finish: Opaque coating on outside, orange on inside
Base: E-26s Brass Medium Base
Class: B
Filament: C-9 w/ 3 supports
Lamp Life: 1000 hours
Manf. Date: -
Country of Orgin: USA

During the World War II, it was not safe to turn on lights at night because the plane bombers could lurk in the night, see the lights and know there are development there and they would drop bombs on them, destroying the cities. The Blackout bulb solves the problem, by coating a colored bulb with black opaque coating except for a small spot on the end of the bulb so that it will only cast downward light, and no uplight. That way people can see their way, and the pilots of the bombers cannot see the uplight of these bulbs. A low wattage filament also helps by keeping the light as dim as possible, and colors help keep the light dim still...and enough to allow the people in buildings to see their way. Most WWII blackout bulbs were made in the A-17 or A-19 envelope, but Wabash chose to use radio tube envelopes for their blackout light bulbs for some reason. This particular lamp still works, and is an orange version. Red and blue ones are also known to exist. Pic of the lamp lit up coming soon!

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