C78-391

Technical Characteristics

• Overall Length

  1.688 inches maximum

• Emitted Light Characteristic

  colorless

• Burning Position

  any acceptable

• Base Style

  telephone slide number one

• Bulb Designator

  t-2

• Voltage Rating

  18.000 volts nominal

• Rated Average Life

  indefinite long

• Bulb Light Transmission Characteristic

  transparent

• Current Rating For Which Designed

  0.035 amperes minimum and 0.045 amperes maximum

• Bulb Style

  t (tubular)

• Filament Designation

  c-2f

• Filament Heavy Duty Service Rating

  extended service

• Specification/Standard Data

  08108-18a1 manufacturers standard

• Wattage Rating

  0.720 watts

• Light Output Rating

  0.150 spherical candlepower nominal single rating