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Osram Sylvania HLX 64225 ESA/FHD 10W Halogen Light Bulb

Osram Sylvania HLX 64225 ESA/FHD 10W Halogen Light Bulb (10 Pack)

$35.00
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SKU:
ESA/FHD (54260) - 10 Bulbs
UPC:
4050300006758
Availability:
Stock Item
Shipping:
Calculated at Checkout
Quantity Option (Pack):
10 Bulbs
Product Description
Low-voltage HLX bi-pin halogen capsule for microscopy, lab instruments, fiber illumination, and medical/scientific lighting.
 
Overview

The Osram / Sylvania HLX 64225 (ESA/FHD) is a precision 10W, 6V quartz tungsten-halogen capsule designed for equipment that depends on stable, repeatable illumination in a compact form factor. This lamp uses a G4 bi-pin base and is commonly specified by ANSI as ESA / FHD. This listing is for a 10-pack intended for maintenance stocking and high-uptime programs.

Key Highlights
  • Electrical: 10W, 6V (low-voltage)
  • ANSI Code: ESA / FHD
  • Base: G4 bi-pin
  • Shape: T3 capsule (single-ended)
  • Color Temperature: ~3200K (typical)
  • Nominal Output: ~200 lumens (typical)
  • Average Life: ~100 hours (typical)
  • Lamp Technology: HLX (Xenophot®) quartz halogen
Typical Applications
  • Microscope illuminators and optical instruments
  • Laboratory and analytical equipment
  • Fiber illumination systems and light engines
  • Surgical, dental, and medical/scientific overhead lighting systems (6V capsule platforms)
  • UV curing systems that specify this low-voltage halogen architecture (verify system requirements)
Selection Tip
For ESA/FHD platforms, output and life are often a tradeoff. High-output variants are commonly selected for brightness and color stability, while longer-life alternates may be available in the same mechanical family with lower lumen output. Always qualify by ANSI code and core specs.
Handling Tip
Quartz halogen capsules are sensitive to surface contamination. Avoid touching the glass with bare hands. Use clean nitrile gloves and/or a lint-free wipe to reduce residue and minimize hot-spot failure risk.
Industry Update (Branding & Supply Continuity)
Ushio is scheduled to assume the U.S. Entertainment & Industry (ENI) lamp business as the legal contracting entity effective March 1, 2026. During this transition, customers may notice changes to branding, labeling, packaging, or invoicing entity even when the underlying lamp specification remains the same. SOSCleanroom will continue to support these lamps and can help qualify continuity by part number and critical specs (ANSI code, voltage, wattage, and base type) to ensure you receive the correct product across branding changes.
Need help selecting the right product?
We can help verify ANSI codes, base types, and low-voltage requirements to prevent mis-matches in microscope and instrument platforms.
Always confirm compatibility with your equipment model, required voltage (6V), base type (G4), and ANSI ESA/FHD specification prior to installation.
The Technical Vault
By SOSCleanroom
HLX 64225
Osram / Sylvania HLX 64225 — ESA/FHD — 10W 6V G4 Bi-Pin (10 Pack)
Low-voltage quartz halogen capsule optimized for precise filament alignment and stable instrument illumination.
Core Qualification Specifications
ANSI ESA / FHD
Wattage / Voltage 10W / 6V (low-voltage)
Base G4 bi-pin
Lamp Technology HLX (Xenophot®) Quartz Tungsten Halogen
Color Temperature ~3200K (typical)
Nominal Output ~200 lumens (typical)
Rated Life ~100 hours (typical)
Form Factor T3 capsule, single-ended
Lamp Science (HLX / Xenophot® Architecture)

HLX (Xenophot®) lamps are designed around precise filament geometry and controlled quartz pinch construction to improve alignment and optical repeatability in instruments. In low-voltage systems, stable filament positioning helps maintain consistent coupling into optics (for example, condenser systems or fiber bundles) and supports repeatable illumination in microscopy and analytical platforms.

Like other quartz halogen lamps, 64225 uses halogen gas chemistry to support the regenerative halogen cycle, reducing envelope blackening and helping keep output steadier over life compared to non-halogen incandescent designs. Low-voltage operation can also reduce arc-over risk at the socket and supports compact lamp geometries in tightly packaged instruments.

Compare & Contrast (Spec Qualification Logic)
In the ESA/FHD family, higher output typically comes with shorter service life. If your equipment prioritizes maximum brightness and stable color, ESA/FHD is a common fit. If longer service intervals are the priority, alternate lamps may exist in the same mechanical platform with lower lumen output. Qualify by ANSI, voltage, base, and dimensional constraints.
Cross-Reference Notes (Qualification-First)

Primary identifiers: HLX 64225 and ANSI ESA/FHD, with 10W / 6V and G4 base. In market catalogs, this lamp is commonly cross-referenced by OSRAM Americas product number 54260. Other manufacturers may list equivalents when matching the same ANSI and mechanical configuration; always verify fit, light center length, and instrument requirements prior to substitution.

Handling & Reliability
Avoid finger oils on quartz. Ensure full insertion into the G4 socket and verify socket tension. In precision instruments, vibration and poor contact can cause intermittent operation and localized heating. Always allow complete cool-down before removal.
Industry Update (Ushio & ENI Continuity)
Ushio is scheduled to assume the U.S. Entertainment & Industry (ENI) lamp business as the legal contracting entity effective March 1, 2026. During the transition, branding or packaging updates may occur even when lamp specifications remain unchanged. SOSCleanroom will continue supporting these lamps and qualifying continuity by part number and critical specifications.