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Osram HPL 550/77/X - 54604

Lamp HPL 550/77/X (UCF) HPL550/77VX
Description 77V 550W Heat Sink 3065K
Brand Osram
MPN 54604
UPC 046135546044


The HPL 550/77/X Osram 54604 is a Halogen T6 77V 550W Lamp with a Medium BiPin with Heat Sink base.
Specifications for the 54604 Osram HPL 550/77/X Replacement Lamp
Shape T6
Lamp Base Medium BiPin with Heat Sink
Filament 4-C8
Bulb Finish Clear
Rated Life 2000 hours
Light Center Length - LCL 2.35in (60.30mm)
Operating Position Universal
Initial Lumens 12160
Color Temperature 3065 K
Color Rendering Index (CRI) 100
Watts 550 W
Volts 77 V
Maximum Overall Length - MOL 4.10in (104.10mm)
Diameter 0.74in (18.80mm)
Product Code 54604
Family Name Osram HPL Ultra Plus (UCF) Ended Tungsten Halogen Lamps
Description HPL 550/77/X
Ordering Code UCF HPL550/77VX
SKU Qty 1
Case Qty (Price Listed is Per Bulb) 12
Sales Unit Each
UPC 046135546044
Osram HPL 550/77/X 54604 Replacement Bulb Applications & Features


  • Theater
  • TV
  • Studio
  • Professional Photography
  • Entertainment and Architectural Lighting
  • Source Four Series


  • Osram HPL 550/77X Halogen Bulb
  • Metal Heat Sink Base
  • Ultra Compact Filament
  • HPL 550 77V Long Life Lamp
  • HPL 550X Single Ended Lamp
  • Halogen Display Optic Lamp
HPL 550/77/X Osram Halogen Lamp

  • DANGER! The HPL550/77X Osram replacement lamp operates at extremely high temperatures that can cause serious physical injuries and property damage.
  • Only use the Osram HPL 550/77/X replacement lamp in Halogen-approved fixtures. Fixtures should fully contain any parts of the Osram HPL550/77X Halogen lamp upon the event of a lamp burst.
  • Do not use the UCF HPL550/77VX HPL 550/77/X 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 of the Osram HPL550/77X.
  • Do not touch the Osram HPL 550/77/X 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.
  • Clean any dirt, oil, or lint away from the bulb with alcohol and a lint-free cloth or tissue. Any foreign particles or materials on the HPL 550/77/X Osram replacement bulb surface can cause hot spots on the bulb and result in lamp failure.
  • Never touch the Osram HPL 550/77/X 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 HPL 550/77/X lamp.
  • Affix the HPL 550/77/X Osram replacement lamp securely in the socket. Improper installation of the Osram HPL 550/77/X replacement lamp will cause electrical arcing, overheating and short life to lamp and socket. Replace lamp holders and sockets when necessary.
  • Keep the temperature of the Osram HPL 550/77/X lamp seal below 350C.
  • Keep the temperature of the HPL550/77X Osram replacement lamp wall above 250C.
  • Keep the temperature of the Osram HPL 550/77/X UCF HPL550/77VX lamp wall below 800C.
  • 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 HPL 550/77/X replacement lamps should not be operated beyond the total rated voltage. Avoid the use of dimmers that may drive the Osram HPL550/77X lamp over its rated voltage.
  • Operate the Osram HPL 550/77/X UCF HPL550/77VX 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 the HPL550/77X lamp to directly expose another. This may lead to overheating and shortened lamp life of the HPL550/77X.