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Osram Sylvania ELC 250W MR16 Halogen Light Bulb

$8.95
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SKU:
ELC (54840)
UPC:
046135548406
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Product Description
High-output MR16 halogen reflector lamp for projection, fiber-optic illumination, and entertainment systems.
SOSCleanroom
Overview

The Osram / Sylvania ELC is a high-output 250W, 24V halogen lamp built in the MR16 reflector format for applications that rely on consistent beam performance and dependable light delivery. It uses a GX5.3 bi-pin base and is commonly specified in overhead projection, fiber-optic illumination, and entertainment-related equipment. SKU: ELC (54840).

Key Highlights
  • Electrical: 250W, 24V
  • Base: GX5.3 Bi-Pin
  • Shape: MR16
  • Type: Halogen with reflector
  • Average Life: 50 hours
  • UPC: 046135548406
Typical Applications
  • Overhead projection systems
  • Fiber-optic illumination systems
  • Entertainment and specialty lighting equipment requiring MR16 halogen reflector lamps
Handling Tip 
Halogen lamps run hot and are sensitive to surface contamination. Avoid touching the glass/quartz 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 and ams OSRAM announced an agreement for Ushio to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with closing expected by the end of March 2026. During and after transitions in specialty lamp portfolios, customers may see changes such as labeling, packaging, and part-number presentation across certain lamp families. Best practice: qualify replacements by the manufacturer code and critical specs (250W/24V, GX5.3, and MR16 geometry) and retain ELC (54840) in maintenance records.
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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), base type (GX5.3), and MR16 format prior to installation.
The Technical Vault
By SOSCleanroom
Specs & Compatibility
Replacement Guidance Handling & Storage Cleanroom Considerations
Quick Specs
Manufacturer / Ordering Code Osram / Sylvania ELC | Mfg. Order Code: 54840 | UPC: 046135548406
Lamp Type / Technology Low-voltage tungsten halogen with MR16 reflector
Output / Spectrum Visible (continuous spectrum) with infrared component typical of halogen sources
Wattage / Voltage 250W / 24V
Base / Socket GX5.3 Bi-Pin
Shape / Envelope MR16
Average Life 50 hours
Primary Applications Overhead projection, fiber-optic illumination, entertainment
The Science: How a Halogen Bulb Produces Light
A halogen lamp is a form 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” improvement 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 helps reduce 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 and ams OSRAM announced an agreement for Ushio to acquire ams OSRAM’s Entertainment & Industry Lamps (ENI) business, with the transaction expected to close by the end of March 2026.
What this means for buyers: across certain specialty lamp lines, customers may encounter changes in branding, labeling, packaging, or channel availability during the transition. To reduce risk, qualify replacements by 250W/24V, GX5.3, and MR16 geometry, and keep the manufacturer ordering code (54840) in maintenance records.
Replacement & Handling Notes
  • Match electrical specs: use 250W / 24V only. Incorrect voltage can damage equipment or shorten lamp life.
  • Confirm base & format: GX5.3 pin geometry and MR16 reflector format must match your fixture’s requirements.
  • Keep the envelope clean: fingerprints/residues can create localized hot spots. Use clean nitrile gloves and/or a lint-free wipe.
  • Plan spares: this lamp is commonly listed at 50 hours average life; keep spares for critical equipment uptime.
Cleanroom Considerations

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

Stage clean nitrile gloves and a cleanroom-grade lint-free wipe during installation to reduce contamination risk and prevent residue transfer to the lamp and 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 systems, confirm OEM requirements (voltage, wattage, base type, MR16 geometry, and thermal limits) prior to use.