Philips 28728-4 MH175/C/U – 175W | 3900K Cool White | CRI 70 | ANSI M57/E | E26 Medium Screw

The Philips 28728-4 MH175/C/U is a 175W 3900K Cool White Metal Halide HID lamp, CRI 70, ANSI M57/E, E26 Medium Screw, 10,000 hours rated life. Enclosed Fixtures Only. Requires a compatible HID ballast. Match ANSI code to ballast specification. UPC: 46677287283. MPN: 287284. Philips order code: #28728-4 Switch Start MH Std 175W Mog ED28 CO..

Quick Specs

• Brand: Philips
• Series: Philips Metal Halide
• Philips Order Code: #28728-4 Switch Start MH Std 175W Mog ED28 CO.
• Manufacturer Part Number: 287284
• UPC: 46677287283
• ANSI Code: M57/E
• Lamp Type: Metal Halide HID
• Wattage: 175W
• Color Temperature: 3900K Cool White
• CRI: 70
• Rated Average Life: 10,000 hours
• Base Type: E26 Medium Screw
• Overall Length / Diameter (MOL): 8-5/16in x DIA 3.5in
• Fixture Compatibility: Enclosed Fixtures Only
• Start Type: Switch-Start — standard probe-start MH ballast
• Mercury Content: Contains mercury — dispose per local regulations.

Product Overview

The Philips 28728-4 MH175/C/U is a 175W 3900K Cool White Metal Halide HID for commercial and industrial HID lighting. CRI 70. Rated life: 10,000 hours. Enclosed Fixtures Only.

Requires a compatible HID ballast. Match ANSI code to ballast specification. Contains mercury — dispose per local regulations.

Applications

• Commercial and industrial HID lighting – Commercial and industrial hid lighting.
• Retrofit and maintenance replacement – Verify ANSI code, wattage, and base type before ordering. Match ANSI code to ballast.

Safety and Installation

• Compatible HID ballast required. Requires a compatible HID ballast. Match ANSI code to ballast specification.
• Fixture: Enclosed Fixtures Only.
• Allow warm-up time: 2–5 minutes for full output.
• Hot restrike: Allow 5–12 minutes after switching off before restarting.
• UV radiation: Use only in fixtures with UV-protective shielding.
• Mercury disposal: Contains mercury — dispose per local lamp recycling regulations.

Ordering Information

• Brand: Philips
• Series: Philips Metal Halide
• Philips Order Code: #28728-4 Switch Start MH Std 175W Mog ED28 CO.
• ANSI Code: M57/E
• UPC: 46677287283
• Wattage: 175W
• Base: E26 Medium Screw
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

Compliance

• Contains mercury — dispose per local lamp recycling regulations.
• Verify RoHS and Prop 65 compliance with Philips specification sheet.
• HS Tariff Code: 8539.32.00.90

ADL Supply recommends confirming all specifications with the Philips product data sheet prior to installation.