Product Overview

Philips 23253-8 - MS400/HOR/ED28/PS – 400W | 4000K Cool White | ANSI M155/M128/M135/E | Horizontal ±15° | E39 Mogul Screw
The Philips 23253-8 - MS400/HOR/ED28/PS is a 400W Metal Halide HID lamp, ANSI s: M155 / M128 / M135 / E, E39 Mogul Screw, Horizontal ±15° burn position. Enclosed Fixtures Only. Requires a compatible HID ballast. Match ANSI code to ballast specification. UPC: 46677232535. MPN: MS400HOR-ED28-Pulse Start.
Wattage 400W CMH/MH | Color Temp 4000K CCT | ANSI Code M155/M128/M1 Ballast Code | Rated Life — Hours | Base E39 Mogul |
Quick Specs
- Brand: Philips
- Series: Philips Metal Halide
- Philips Order Code: 23253
- Manufacturer Part Number: MS400HOR-ED28-Pulse Start
- UPC: 46677232535
- ANSI Code: M155/M128/M135/E
- Lamp Type: Metal Halide HID
- Color Temperature: 4000K Cool White
- Wattage: 400W
- Rated Average Life: 20,000 hours
- Base Type: E39 Mogul Screw
- Overall Length / Diameter (MOL): MOL 8-5/16" x DIA 3.5"
- Burn / Operating Position: Horizontal ±15°
- Fixture Compatibility: Enclosed Fixtures Only
- Start Type: Pulse-Start — requires pulse-start ballast and 4kV socket
- Mercury Content: Contains mercury — dispose per local regulations.
Product Overview
The Philips 23253-8 - MS400/HOR/ED28/PS is a 400W Metal Halide HID for commercial and industrial HID lighting. 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
- Pulse-start ballast required. Requires a compatible HID ballast. Match ANSI code to ballast specification.
- Fixture: Enclosed Fixtures Only.
- Burn position: Horizontal ±15°.
- 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: 23253
- ANSI Code: M155/M128 / M135 / E
- UPC: 46677232535
- Wattage: 400W
- Base: E39 Mogul 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.