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What type of fluorescent lamp is commonly used in an exterior sign?
Jamesevans67
A high output lamp with a dc recessed base connected to a high output -10 degree ballast. Anything else will not work properly in cold weather.
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∙ 15y ago
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What is the most common fluorescent lamp found in an exterior commercial sign?
The most common fluorescent lamp found in an exterior commercial sign will be a high output DC recessed base lamp. The ballast will be a zero degree type to allow it to ignite the tube in cold weather down to 0 degrees F.
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