Skip to main content
Osram Sylvania HLX 64642 FDV 150W Halogen Light Bulb

64642 Osram Sylvania HLX FDV 150W Halogen Light Bulb (10 Pack)

$38.00
(No reviews yet)
SKU:
FDV (54264) - 10 Bulbs
Availability:
Stock Item
Shipping:
Calculated at Checkout
Product Description
High-output HLX/XENOPHOT halogen capsule for microscope and precision medical/scientific illumination.
SOSCleanroom
Overview

The Osram / Sylvania HLX 64642 (ANSI FDV) is a precision 150W, 24V low-voltage halogen capsule engineered for bright, stable illumination in demanding optical systems. “HLX” identifies OSRAM’s XENOPHOT technology, where xenon replaces the standard fill gas to support high performance and improved lumen maintenance. This listing is a 10-pack. SKU: FDV (54264) - 10 Bulbs.

Key Highlights
  • Electrical: 150W, 24V
  • ANSI Code: FDV
  • Mfg. Ordering Code: 54264
  • Base: 2-Pin (G6.35)
  • Shape: T3.5
  • Length: 50mm (1.95 in)
  • Initial Light Output: 5000 lumens
  • Color Temperature: 3450K
  • Average Life: 300 hours
  • Pack Quantity: 10 bulbs
Typical Applications
  • Microscope illuminators and optical instruments
  • Medical and scientific imaging/inspection equipment
  • Precision lighting assemblies where filament position and stable output matter
Handling Tip 
Halogen capsules run hot and are sensitive to surface contamination. Avoid touching the glass with bare hands. Use clean nitrile gloves and/or a lint-free wipe to minimize residue and reduce the risk of premature failure.
Industry Update:
In July 2025, Ushio announced an agreement to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing anticipated by the end of March 2026. During and after a transition, customers may see changes such as branding, labeling, packaging, and distribution channels. Best practice: qualify replacements by the manufacturer code and critical specs (150W/24V, G6.35, and capsule geometry) to ensure continuity.
Need help selecting the right product?
If you need additional information please try our SOSCleanroom specific AI ChatBot which draws from our extensive cleanroom specific libraries.
Always confirm compatibility with your equipment model, required voltage (24V), wattage (150W), base type (G6.35), and capsule geometry prior to installation.
The Technical Vault
By SOSCleanroom
Specs & Compatibility
Replacement Guidance Handling & Storage Cleanroom Considerations
Quick Specs
Manufacturer / Ordering Code Osram / Sylvania HLX 64642 | ANSI: FDV | Mfg. Ordering Code: 54264 | Pack: 10 bulbs
Lamp Type / Technology Low-voltage tungsten halogen capsule (HLX / XENOPHOT xenon fill)
Wattage / Voltage 150W / 24V
Base / Socket 2-Pin (G6.35)
Shape / Envelope T3.5 | Length: 50mm (1.95 in)
Optical Output Initial: 5000 lm | CCT: 3450K
Average Life 300 hours
HLX / XENOPHOT Note (Why It Matters)
“HLX” identifies OSRAM’s XENOPHOT halogen technology where xenon replaces krypton as the fill gas. In many optical applications, xenon can help reduce tungsten vaporization and support higher filament temperature—supporting strong output and more consistent lumen maintenance.
The Science: How a Halogen Bulb Produces Light
A halogen lamp is a type of incandescent source. Electrical current heats a tungsten filament until it becomes white-hot, producing continuous-spectrum light (visible plus infrared) through thermal radiation.
The “halogen” advantage comes from the halogen cycle inside a quartz (high-silica) envelope: a small amount of halogen (often iodine/bromine) reacts with evaporated tungsten and helps transport it back toward the filament where it redeposits. This reduces envelope blackening and supports consistent output—while also driving high operating temperatures.
Industry Update: ams OSRAM ENI Business → Ushio (Expected Close by End of March 2026)
Ushio announced an agreement to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing anticipated by the end of March 2026.
What this means for buyers: customers may see changes in labeling, packaging, and part-number presentation across certain specialty lamp lines during the transition. To reduce risk, qualify replacements by 150W/24V, G6.35, and capsule geometry, and keep the manufacturer ordering code (54264) in maintenance records.
Replacement & Handling Notes
  • Match electrical specs: use 24V and 150W only. Incorrect voltage can cause rapid overheat/failure or insufficient output.
  • Confirm base & filament position: G6.35 fit and filament alignment affect optical coupling and brightness.
  • Keep the envelope clean: fingerprints/residues can create localized hot spots. Use clean nitrile gloves and/or a lint-free wipe.
  • Pack management: this is a 10-pack; keep spares sealed and clean to reduce contamination during maintenance events.
Cleanroom Considerations

Treat lamp changes as a controlled maintenance step: minimize packaging debris, use low-lint handling materials, and keep the capsule free of oils and particulates prior to powering the instrument.

Stage clean nitrile gloves and a cleanroom-grade lint-free wipe during installation to reduce contamination risk and prevent residue transfer to nearby optics.

Need deeper specs or cross-references?
If you need additional information please try our SOSCleanroom specific AI ChatBot which draws from our extensive cleanroom specific libraries.
For mission-critical optical systems, confirm OEM requirements (voltage, wattage, base type, filament positioning, and thermal limits) prior to use.