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Clear ED17 metal halide bulb with E26 base

SYLVANIA

SYLVANIA 64479 175W Metal Halide Standard Bulb

SKU CH-DY15-K3GWZ

A 175-watt metal halide lamp delivering 14,400 lumens at 4000K with a 7,500-hour life and E26 base

  • TypeHigh Intensity Discharge
  • Wattage175
  • Color Temperature4000K
  • Life Time Hours7500
  • Color Rendering Index65
  • Delivers 14400 lumens of bright 4000K light
  • Universal E26 medium base fits many fixtures
  • Compact ED17 shape enables smaller luminaire designs
  • 7500-hour rated life reduces replacement frequency
  • M57/E ANSI code rated for enclosed fixtures

SYLVANIA 175W Metal Halide Lamp

The SYLVANIA 64479 is a 175 watt metal halide bulb designed for commercial and outdoor lighting installations. It delivers 14400 lumens at a 4000K colour temperature with a CRI of 65. The clear ED17 envelope and E26 medium base suit enclosed fixtures rated for ANSI code M57/E. Average rated life is 7500 hours.

Enclosed Fixture Compatibility

The lamp requires an enclosed fixture that meets the M57/E ANSI code for safe operation. Its reduced jacket diameter allows the arc tube to sit closer to the reflector, which increases fixture efficiency. The E26 medium base fits standard sockets without adapters. Universal, horizontal or vertical operating positions give installers flexibility in luminaire design.

High-Output Area Lighting

This bulb suits warehouses, parking areas and industrial sites that need high lumen output from a compact source. Buyers who want integrated LED replacements or dimmable operation should look at other technologies. It is not intended for residential table lamps or open fixtures that lack the required enclosure rating.

Highlights

  • Delivers 14400 lumens of bright 4000K light
  • Universal E26 medium base fits many fixtures
  • Compact ED17 shape enables smaller luminaire designs
  • 7500-hour rated life reduces replacement frequency
  • M57/E ANSI code rated for enclosed fixtures

Specifications

BrandSylvania
TypeHigh Intensity Discharge
Wattage175
Color Temperature4000K
Life Time Hours7500
Color Rendering Index65

Questions about this item

How long does the 175-watt metal-halide arc maintain its rated 14400-lumen output before noticeable dimming?

The lamp is rated for 7500 hours of average life at 4000 K colour temperature and 65 CRI, after which lumen maintenance typically falls below useful levels.

What heat and noise should I expect when the bulb runs continuously in an enclosed fixture?

The M57/E ANSI code means it is designed for enclosed fixtures; the arc generates significant heat but operates silently with no moving parts.

Which socket and ballast must my fixture already have for this E26 medium-base bulb to strike and run?

It requires an E26 medium-base socket and a compatible M57/E probe-start metal-halide ballast rated for 175 watts.

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