Product Overview
Osram 64643 FDS/DZE – 150W 24V GY9.5 T5
The Osram 64643 DZE/FDS 24V 150W is a tungsten halogen display/optic lamp designed for projection, microfilm, microscope, and studio equipment. Key buying specifications for this lamp include 150W, 24V, GY9.5, 5,000 lm, 100 Hours.
Note: This is the same physical lamp (Product #54277, "FDS/DZE 64643") already listed in this catalog under SKU SYLB54277 (its UPC, 4008321099648, matches exactly). Both listings are kept per your CSV — see the correction log for details.
Use this product when your existing lamp, fixture label, or equipment manual matches the lamp code, wattage, voltage, base type, and bulb shape shown below. For specialty optical systems, matching the electrical rating and socket configuration is essential to avoid premature lamp failure or incorrect focal alignment.
| Wattage 150W Power Draw | Voltage 24V Operating | Base GY9.5 Socket Type | Lumens 5,000 Initial lm | Life 100 hrs Rated Avg. |
Product Overview
This Osram display/optic lamp is built for demanding applications where output, lamp geometry, and socket fit must match the original equipment specification. It is suitable for maintenance replacement in compatible projectors, microfilm equipment, microscope illumination, or studio equipment depending on the host equipment requirements.
Why Choose This Product
- Specification-Driven Replacement: The key replacement criteria are wattage, voltage, base type, bulb shape, rated life, and lamp code.
- Audiovisual Application: Designed for professional optical systems where lamp position and output affect performance.
- Commercial Maintenance Ready: Useful for repair shops, facilities, labs, schools, theaters, and service contractors maintaining legacy equipment.
Technical Specifications
| Brand | Osram |
| Product Name | Osram 64643 DZE/FDS 24V 150W |
| ADL SKU | OSL64643 |
| Manufacturer / Catalog Reference | 54277 |
| Ordering Abbreviation / Lamp Code | FDS/DZE 64643 |
| ANSI Code | FDS/DZE |
| Lamp Technology | Tungsten Halogen Display/Optic Lamp |
| Application Category | Audiovisual |
| Wattage | 150W |
| Voltage | 24V |
| Base Type | GY9.5 |
| Bulb Shape | T5 |
| Initial Lumens | 5,000 lm |
| Rated Average Life | 100 Hours |
| Package Quantity (Mfr Case Pack) | 12 |
| Country of Origin | Germany |
| UPC / EAN | 4008321099648 |
| PDF Reference | OSRAM SYLVANIA Photo-Optic & Scientific catalog, Audiovisual section, page 213 |
Compatible Applications
- Projection equipment
- Microfilm equipment
- Microscope illumination
- Studio lighting
Cross Reference & Search Numbers
- 64643
- FDS/DZE
- FDS/DZE 64643
- Product #54277
Before Ordering Verify
- Wattage: Confirm your equipment is rated for 150W.
- Voltage: Confirm the power supply or transformer output matches 24V.
- Base Type: Match the socket to GY9.5 before ordering.
- Bulb Shape / Fit: Confirm the lamp shape and dimensions clear the fixture housing and optical path.
- Lamp Code: Match any ANSI, NAED, HLX, or manufacturer code printed on your current lamp whenever available.
- Duplicate Listing: This lamp is also carried under ADL SKU SYLB54277. Confirm which SKU your system should use before ordering to avoid split inventory.
Safety & Installation Guidelines
- Use Approved Fixtures Only: Install only in equipment designed for this lamp technology, wattage, and voltage.
- Do Not Touch Quartz Glass: Use gloves or a lint-free cloth. Skin oils can create hot spots and shorten lamp life.
- Disconnect Power First: Turn off power and allow the lamp to cool completely before removal or installation.
- Verify Enclosure Requirements: Many halogen display/optic lamps must be used only in approved enclosed fixtures.
- Mercury-Free Halogen Lamp: Tungsten-halogen lamps contain 0.0 mg mercury; handle and dispose according to the fixture/equipment instructions and local recycling guidance.
Wholesale & Project Support
ADL Supply supports contractors, repair technicians, laboratories, schools, theaters, maintenance teams, and specialty lighting buyers with replacement lamp sourcing, volume pricing, and project support.
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.