Philips 23256-1 CDM205/U/O/K ED28 – 205W | 4100K Cool White | CRI 87 | ANSI C184/O | Universal | EX39 Extended Mogul Screw

The Philips 23256-1 CDM205/U/O/K ED28 is a 205W 4100K Cool White CDM AllStart Ceramic Metal Halide — High Wattage lamp, CRI 87, ANSI C184/O, EX39 Extended Mogul Screw (protected shield — rated for open or enclosed fixtures), 20,000 hours rated life, Universal burn position. Enclosed or Outdoor Luminaires. Requires a compatible CDM/CMH ballast. Operates only on thermally protected control gear. UPC: 46677232566. MPN: CDM205UO4KEA-Allstart.

Quick Specs

• Brand: Philips
• Series: Philips MasterColor CDM AllStart
• Philips Order Code: 23256
• Manufacturer Part Number: CDM205UO4KEA-Allstart
• UPC: 46677232566
• ANSI Code: C184/O
• Lamp Type: CDM AllStart Ceramic Metal Halide — High Wattage
• Wattage: 205W
• Color Temperature: 4100K Cool White
• CRI: 87
• Rated Average Life: 20,000 hours
• Base Type: EX39 Extended Mogul Screw (protected shield — rated for open or enclosed fixtures)
• Overall Length / Diameter (MOL): 8.31in x DIA 3.5in
• Burn / Operating Position: Universal
• Fixture Compatibility: Enclosed or Outdoor Luminaires
• Start Type: Requires thermally protected CMH/CDM ballast.
• Mercury Content: Contains mercury — dispose per local regulations.

Product Overview

The Philips 23256-1 CDM205/U/O/K ED28 is a 205W 4100K Cool White Philips MasterColor CDM AllStart ceramic metal halide lamp. AllStart technology allows operation on both probe-start and pulse-start ballasts for maximum installation flexibility. CRI 87, 20,000 hours rated life.

Requires a compatible CMH ballast with thermal protection. Contains mercury — dispose per local regulations.

Applications

• Commercial and industrial CDM lighting – Commercial high-bay, outdoor area, and industrial lighting.
• Retrofit and maintenance replacement – Verify ANSI code, wattage, and base type before ordering. Requires thermally protected CDM control gear.

Safety and Installation

• Thermally protected ballast required. Requires a compatible CDM/CMH ballast. Operates only on thermally protected control gear.
• Fixture: Enclosed or Outdoor Luminaires.
• Burn position: Universal.
• Allow warm-up time: 2–4 minutes for full output.
• Hot restrike: Allow 5–10 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 MasterColor CDM AllStart
• Philips Order Code: 23256
• ANSI Code: C184/O
• UPC: 46677232566
• Wattage: 205W
• Base: EX39 Extended Mogul Screw (protected shield — rated for open or enclosed fixtures)
• 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.

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