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Sylvania

58309 Sylvania EXN/C 50W 12V MR16 Clear Halogen Covered Lamp
7.99 USD
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Match Sylvania item 58309 and the complete 50MR16/T/FL35/EXN/C designation. The /C identifies the front cover glass; an uncovered EXN lamp is not automatically interchangeable in equipment that requires a covered lamp.

Need help confirming fit? Email help@dynamiclamps.com with the equipment manufacturer, model, and a clear photo of the installed lamp and equipment labels.

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Specifications

Sylvania 58309 TITAN EXN/C covered MR16 lamp

  • Manufacturer item number: 58309
  • Ordering abbreviation: 50MR16/T/FL35/EXN/C
  • ANSI family: EXN/C, covered
  • Power: 50 W
  • Voltage: 12 V
  • Base: GU5.3 two pin
  • Bulb: MR16 with front cover glass
  • Reflector: TITAN hard dichroic
  • Beam: 35-degree flood
  • Nominal output: 900 lm
  • Center beam candlepower: 2,200 cd
  • Color temperature: 3000 K
  • Color rendering index: 100
  • Rated life: 4,000 hours
  • Maximum overall length: approximately 44.8 mm
  • Diameter: approximately 51 mm
Equipment compatibility

Compatible-equipment references

Use only where the equipment requires a 50W, 12V, GU5.3 MR16 flood lamp with front cover glass and permits the EXN/C format.

  • Welch Allyn LS-150 examination light requiring the 50W lamp with cover glass
  • Welch Allyn 44500 and 44510 examination lights when specified for 04450-U / covered 50W replacement
  • Low-voltage display and museum fixtures labeled 50MR16/FL35/EXN/C
  • Track, accent, retail, and hospitality fixtures designed for a 12V GU5.3 covered MR16 flood lamp

Fixture transformers, thermal limits, enclosure requirements, and production revisions vary. The equipment label and service manual take precedence.

Related EXN lamp format

Uncovered EXN option

Hikari EXN 50W 12V MR16 lamp

The linked lamp is not a direct substitute where cover glass is required. It is an uncovered EXN-format lamp with different manufacturer-rated life, beam, output, and dimensions. Confirm the complete equipment requirement before changing versions.

Documentation & safety

Manufacturer documentation

Sylvania MR16 specification data

Welch Allyn LS-135 / LS-150 service manual

Safety

Use only on the equipment's specified 12V circuit. Disconnect power and allow the lamp and fixture to cool before service. Handle the lamp with clean gloves or a lint-free cloth.

Halogen lamps operate at high temperature and pressure. Keep the fixture's protective enclosure and airflow in place, and never replace a required covered lamp with an uncovered version.