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OSRAM 55139 double-ended HMI arc lamp, clear quartz tube, metal end caps

OSRAM

OSRAM 55139 1200W 6000K HMI Double Ended Standard Bulb

SKU CH-41SV-6NJCS MPN 55139

A 1200 W HMI discharge lamp producing 110000 lumens at 6000 K with a CRI above 90 for studio, TV and film lighting

  • TypeHigh Intensity Discharge
  • ColorAssorted
  • Lumen Range110000
  • Wattage1200
  • Color Temperature6000K
  • Life Time Hours1000
  • True daylight 6000K colour temperature for film & TV
  • High 90 CRI renders colours accurately on set
  • 110000 lumens from 1200W HMI arc discharge
  • Hot-restrike capable for continuous shooting sessions
  • 1000-hour rated life with eXtreme Seal pinch technology

Professional Daylight Source

The OSRAM 55139 is a 1200 watt HMI double-ended lamp built for studio, TV, film and high-speed photography. Its 6000K colour temperature matches natural daylight and the CRI exceeds 90 for true colour rendition. The SFc15.5 base supports hot restrike ignition so shooting can resume without a cool-down period.

Stage and Screen Lighting

This lamp suits gaffers and cinematographers who need reliable daylight balance on set or in large-screen projection. It is not intended for general domestic fixtures or installations that cannot supply the required ignition voltage and ballast. Buyers without professional HMI gear should look at alternative lighting types.

Sustained Output Stability

The arc maintains high colour-temperature stability over the 1000 hour rated life. Heat-dissipating moly-foil construction and eXtreme Seal technology allow pinch-seal temperatures up to 450°C. Compression-sealed bases enhance durability while the design delivers up to 100 lm/W efficiency throughout extended runs.

Highlights

  • True daylight 6000K colour temperature for film & TV
  • High 90 CRI renders colours accurately on set
  • 110000 lumens from 1200W HMI arc discharge
  • Hot-restrike capable for continuous shooting sessions
  • 1000-hour rated life with eXtreme Seal pinch technology

Specifications

BrandOSRAM
Model55139
Part Number55139
TypeHigh Intensity Discharge
ColorAssorted
Lumen Range110000
Wattage1200
Color Temperature6000K
Life Time Hours1000
Color Rendering Index90

Questions about this item

What fixture socket and power rating do I need to run this 1200 W HMI lamp?

The lamp uses an SFc15.5 double-ended base and requires a ballast rated for 1200 W HMI operation; the fixture must accept that base and supply the correct ignition voltage.

Can I use this 6000 K lamp in a fixture that previously held a lower-wattage HMI bulb?

Only if the fixture and its ballast are both rated for 1200 W and the SFc15.5 base; a lower-wattage ballast will not ignite the arc reliably and may overheat.

How can I verify the lamp is performing correctly after installation?

The arc should strike instantly, even when hot, and produce a steady 6000 K daylight output with a CRI above 90; expect roughly 110000 lumens and a rated life of 1000 hours.

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