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Osram

64643 54277 OSRAM FDS/DZE 150W 24V GY9.5 Clear Halogen Lamp
14.49 USD
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Match FDS/DZE, OSRAM order code 54277 / 64643, and the complete 150 W / 24 V / GY9.5 configuration. Similar T4 lamps can differ in base indexing, optical alignment, dimensions, life, and output.

Need help confirming fit? Email help@dynamiclamps.com with the equipment manufacturer, model, and photos of the installed lamp and equipment labels.

Specifications

OSRAM FDS/DZE specifications

Manufacturer OSRAM
Manufacturer order code 54277 / 64643
Codes and references FDS / DZE / A1/262; legacy QuickBooks alias 54755
GTIN / UPC 4008321099648
Power / voltage / current 150 W / 24 V / approximately 6.25 A
Base / bulb GY9.5 two-pin prefocus / clear T4 quartz
Light output 5,000 lm; 3450 K; CRI 100
Filament Flat 6.0 × 3.0 mm precision filament
Dimensions 57.0 mm overall length; 15.0 mm diameter; 33.5 mm light-center length
Rated life / position 100 hours / s90
Lamp weight 2.58 g

Commonly confused with

Do not select this lamp from wattage and voltage alone. G6.35, GY9.5, and GZ9.5 bases and different optical-center dimensions are not automatically interchangeable.

Equipment compatibility

Documented FDS/DZE equipment references

These references are limited to equipment records that expressly identify DZE/FDS or the complete 150 W, 24 V prefocus configuration. Equipment revisions can vary; confirm the lamp code on the equipment label or in the service manual.

  • Ednalite 1624 microfilm reader
  • Ednalite 1625 microfilm reader
  • Ednalite 1640 microfilm reader
  • GAF 7511 microfilm reader
  • GAF 7524 microfilm reader
  • FARO Koolbeam Light 45
  • FARO S-90 Sunlight
  • FARO S-70 / Sunlight 70 upgraded configuration
  • FARO S2000 operatory light
  • FARO Sunlight 2000
  • FARO SC2000 Forma
  • FARO SC90 EDI
  • FARO SC90 Forma
  • FARO TSC 2000 Forma
  • FARO TSC 90 Forma
  • FARO FaroTrack
  • Forest 9000 operatory light
  • Knight Model K operatory light
  • Knight examination light 152616
  • Porter Daystar 590B
  • Porter Daystar S-90B
  • Ritter Model K Starlight
  • Ritter Model K Super Starlite
  • Vacudent operatory light
  • Henry Schein Crusader
  • Henry Schein Starbrite
  • Marus LuxStar operatory light
  • Marus MaxStar Orbit
  • Robin UL 1000 operatory light
  • Midmark operatory light configured for DZE/FDS
  • Fedesa Scorpio operatory light
  • Fidesa Lineo operatory light
  • Fidesa Midway operatory light
  • Fidesa Scorpio operatory light
  • Eureka MC-150 operatory light
  • GE AMX-3 X-ray system lamp position specifying DZE/FDS

The equipment manual and installed-lamp label take precedence.

Brand alternatives

Other stocked FDS/DZE option

The linked product shares the FDS/DZE identity and principal 150 W, 24 V, GY9.5 fit requirements. Manufacturer life, output, color temperature, dimensions, and construction differ, so compare the full specification before substitution.

Current price and availability are shown on the linked product page.

Documentation & safety

Manufacturer documentation

View current OSRAM product data

Safety

Use only in approved professional equipment designed for this lamp's voltage, wattage, base, optical alignment, enclosure, ventilation, and cooling requirements. Disconnect power and allow the equipment to cool completely before service. Handle the quartz bulb with clean gloves or a lint-free cloth.