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Osram Sylvania EKE/X 150W Long Life MR16 Halogen Light Bulb

Osram Sylvania EKE/X 150W Long Life MR16 Halogen Light Bulb

$13.95
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SKU:
EKE/X (58771)
UPC:
046135587719
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Product Description
Long-life MR16 halogen reflector lamp for microscope, fiber optic, projection, and medical microscopy illumination.
SOSCleanroom
Overview

The Osram / Sylvania EKE/X is a precision 150W, 21V halogen lamp in the MR16 reflector format designed for bright, stable illumination in microscope, fiber optic, projection, and medical microscopy systems. The “/X” designation is commonly used for a long-life variant within the same lamp family to support longer service intervals and more predictable maintenance planning. SKU: EKE/X (58771).

Key Highlights
  • Electrical: 150W, 21V
  • Base: GX5.3 Bi-Pin
  • Shape: MR16
  • Type: Halogen with reflector
  • Color Temperature: 3,150K
  • Average Life: 1,000 hours (long-life)
  • UPC: 046135587719
Typical Applications
  • Microscope illuminators and optical instruments
  • Fiber optic light sources and illuminators
  • Projection and medical microscopy systems
Handling Tip 
Halogen lamps 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/21V, GX5.3, and MR16 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 (21V), base type (GX5.3), and MR16 diameter prior to installation.
The Technical Vault
By SOSCleanroom
Specs & Compatibility
Replacement Guidance Handling & Storage Cleanroom Considerations
Quick Specs
Manufacturer / Ordering Code Osram / Sylvania EKE/X | Mfg. Order Code: 58771 | UPC: 046135587719
Lamp Type / Technology Tungsten halogen reflector lamp (MR16) | Long-life variant
Wattage / Voltage 150W / 21V
Base / Socket GX5.3 Bi-Pin
Optical Profile MR16 reflector format (focused beam) | CCT: 3,150K
Average Life 1,000 hours
The Science: How a Halogen Bulb Produces Light
A halogen lamp is a type of incandescent light 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, part-number presentation, origin labeling, and distribution channels across certain specialty lamp lines. To reduce risk, qualify replacements by 150W/21V, GX5.3, and the MR16 form factor, and keep the manufacturer code (EKE/X / 58771) in maintenance records.
Replacement & Handling Notes
  • Match voltage exactly: this is a 21V MR16 lamp. Substituting 12V/20V/24V types changes output and can shorten life.
  • Confirm base & seating: ensure proper GX5.3 fit and full seating depth to maintain optical alignment.
  • Long-life benefits depend on correct operating conditions: stable voltage regulation and correct ventilation help preserve rated life.
  • Keep the envelope clean: fingerprints/residues can create localized hot spots. Use clean nitrile gloves and/or a lint-free wipe.
Cleanroom Considerations

Treat lamp changes as a controlled maintenance step: minimize packaging debris, use low-lint handling materials, and keep the reflector/envelope 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, beam/reflector format, and thermal limits) prior to use.