A-A-1966

Technical Characteristics

• Burning Position

  base down

• Filament Heavy Duty Service Rating

  not rated

• Voltage Rating

  120.000 volts nominal

• Light Center Length

  3.750 inches nominal

• Bulb Light Transmission Characteristic

  translucent

• Emitted Light Characteristic

  white

• Overall Length

  5.250 inches maximum

• Current Rating For Which Designed

  0.250 amperes minimum and 0.583 amperes maximum

• Rated Average Life

  hours

• Bulb Designator

  a-21

• Average Life Rating In Hours

  1200.0

• Light Output Rating

  1035.000 lumens nominal 2nd rating

• Wattage Rating

  30.000 watts and 70.000 watts

• Specification/Standard Data

  08108-301100-120v manufacturers standard

• Light Output Rating

  285.000 lumens nominal 1st rating

• Light Output Rating

  1320.000 lumens nominal 3rd rating

• Base Style

  three contact medium screw

• Filament Designation

  c-2r and cc-8

• Bulb Style

  a (arbitrary designation)