250R40/5
Electric Lamps
LAMP,INCANDESCENT
250R40/5
LAMP,INCANDESCENT
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Technical Characteristics
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Bulb Designator
r-40
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Filament Heavy Duty Service Rating
not rated
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Emitted Light Characteristic
colorless
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Bulb Style
r (reflector)
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Current Rating For Which Designed
0.460 amperes minimum and 0.500 amperes maximum
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Average Life Rating In Hours
5000.0
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Burning Position
any acceptable
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Special Features
burn only in porcelain sockets; designed for service other than illumination
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Base Style
medium screw skirted
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Wattage Rating
250.000 watts
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Voltage Rating
115.000 volts minimum and 125.000 volts maximum
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Rated Average Life
hours
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Features Provided
heat resistant glass
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Bulb Light Transmission Characteristic
transparent
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Filament Designation
c-9 or c-11
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Light Intensity Distribution Feature
reflector infrared
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Overall Length
7.625 inches nominal