NSN: 6240-00-266-9938

Technical Characteristics

• Filament Heavy Duty Service Rating

  not rated

• Bulb Style

  a (arbitrary designation)

• Average Life Rating In Hours

  50.0

• Burning Position

  any acceptable

• Base Style

  medium screw

• Current Rating For Which Designed

  2.000 amperes minimum and 2.174 amperes maximum

• Wattage Rating

  250.000 watts

• Voltage Rating

  115.000 volts minimum and 125.000 volts maximum

• Rated Average Life

  hours

• Overall Length

  4.938 inches maximum

• Bulb Light Transmission Characteristic

  transparent

• Emitted Light Characteristic

  ultraviolet

• Bulb Designator

  a-21

• Filament Designation

  c-9