NSN: 6240-00-011-9441

Technical Characteristics

• Overall Length

  3.500 inches nominal

• Average Life Rating In Hours

  300.0

• Emitted Light Characteristic

  colorless

• Voltage Rating

  14.000 volts nominal

• Base Style

  a48 miniature cap cylindrical end

• Bulb Style

  b33 bt

• Bulb Designator

  bt-4

• Bulb Light Transmission Characteristic

  transparent

• Light Output Rating

  1125.000 lumens nominal single rating

• Wattage Rating

  75.000 watts

• Rated Average Life

  hours

• Burning Position

  vertical anode up