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Osram BBA - 11521

Lamp BBA
Description 250W 118V CRI 100 A21 E26 3400K No 1 Photoflood
Brand Osram
MPN 11521
Previous MPN 11619
UPC 046135116193


In Stock

The Osram BBA 11521 (11619) is an Incandescent A21 118V 250W Lamp with an E26 base.
Specifications for the 11521 Osram BBA Replacement Lamp
Shape A21
Lamp Base E26 (Medium Screw)
Filament C-9
Bulb Finish Frost
Rated Life 4 hours
Operating Position Universal
Initial Lumens 8700
Color Temperature 3400 K
Color Rendering Index (CRI) 100
Watts 250 W
Volts 118 V
Maximum Overall Length - MOL 4.94in (125.50mm)
Product Code 11521
Family Name Sylvania Photoflood
Description BBA
SKU Qty 1
Case Qty (Price Listed is Per Bulb) 12
Sales Unit Each
UPC 046135116193
Osram BBA 11521 Replacement Bulb Applications & Features


  • Photoflood
  • Enlarger
  • Printer


  • Sylvania BBA No 1 Photoflood Lamp
BBA Osram Incandescent Lamp
  • DANGER! The BBA Osram replacement lamp operates at extremely high temperatures that can cause serious physical injuries and property damage.
  • Do not use the BBA Osram replacement lamp in close proximity of paper, cloth or other combustible materials that can cause a fire hazard.
  • Lamps are very fragile. Do not drop, crush, bend or shake them. Vibration or impact will cause filament breakage and short lamp life.
  • Do not touch the Osram BBA bulb surface or inside reflectors with your bare hands. Oils from skin can lead to breakage or shorten the life of the lamp. Use clean gloves or lint-free cloth for installation and removal.
  • Never touch the BBA Osram lamp when it is on, or soon after it has been turned off, as it is hot and may cause serious burns.
  • Do not look directly at the operating bulb for any period of time; this may cause serious eye injury.
  • Always turn off the electrical power before inserting, removing, or cleaning the replacement Osram BBA lamp.
  • Affix the BBA Osram replacement lamp securely in the socket. Improper installation of the Osram BBA replacement lamp will cause electrical arcing, overheating and short life to lamp and socket. Replace lamp holders and sockets when necessary.
  • Make sure lamps of specified wattage and voltage are only used in appropriately rated fixtures. Unspecified use will lead to short lamp life, breakage and overheating of fixture.
  • Osram BBA replacement lamps should not be operated beyond the total rated voltage. Avoid the use of dimmers that may drive your lamp over its rated voltage.
  • Operate the Osram BBA replacement lamp only in the indicated burn position. Failure to do so will lead to overheating and shortened lamp life.
  • Use an external fuse when required.
  • Do not allow one lamp to directly expose another. This may lead to overheating and shortened lamp life.