Philips 27816-8 MS400/BU/PS

Philips 27816-8 MS400/BU/PS – 400W | 4100K Cool White | CRI 62 | ANSI M155/M128/M135/S | Base-Up ±15° | E39 Mogul Screw

The Philips 27816-8 MS400/BU/PS is a 400W Pulse-Start Metal Halide HID lamp, 4100K Cool White, CRI 62, ANSI M155/M128/M135/S, 20,000 hours rated life, Base-Up ±15° burn position. Enclosed Fixtures Only. Requires a compatible pulse-start HID ballast. Match ANSI code to ballast specification. UPC: 46677278168. MPN: ms400bups-ed37.

Quick Specs

• Brand: Philips
• Series: Philips Pulse-Start Metal Halide
• Philips Order Code: 27816-8
• Ordering Name: MS400/BU/PS
• Manufacturer Part Number: ms400bups-ed37
• UPC: 46677278168
• ANSI Code: M155/M128/M135/S
• Lamp Type: Pulse-Start Metal Halide HID
• Color Temperature: 4100K Cool White
• Wattage: 400W
• CRI: 62
• Initial Lumens: 42,600 lm (approx. 106 lm/W)
• Mean Lumens (40% rated life): 29,820 lm
• Rated Average Life: 20,000 hours
• Base Type: E39 Mogul Screw
• Bulb Shape: ED-37
• Bulb Finish: Clear
• MOL (Max Overall Length): 11-1/2"
• LCL (Light Center Length): 7"
• Burn / Operating Position: Base-Up ±15°
• Fixture Compatibility: Enclosed Fixtures Only
• Start Type: Pulse-Start — requires pulse-start ballast and 4kV-rated socket
• Mercury Content: Contains mercury — dispose per local regulations.

Product Overview

The Philips 27816-8 MS400/BU/PS is a 400W Pulse-Start Metal Halide HID lamp for commercial and industrial HID lighting. CRI 62. Initial output 42,600 lumens, rated life 20,000 hours. Enclosed Fixtures Only.

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

Applications

• Commercial and industrial HID lighting – High-bay, warehouse, parking lot, and industrial/retail area 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 rated for this lamp's ANSI code. Match ANSI code to ballast specification.
• Fixture: Enclosed Fixtures Only.
• Burn position: Base-Up ±15°.
• Allow warm-up time: 2–5 minutes for full output.
• Hot restrike: Allow several minutes after switching off before restarting.
• UV radiation: Use only in fixtures with UV-protective shielding. If the outer envelope is broken or punctured, discontinue use immediately.
• Mercury disposal: Contains mercury — dispose per local lamp recycling regulations.

Ordering Information

• Brand: Philips
• Series: Philips Pulse-Start Metal Halide
• Philips Order Code: 27816-8
• Ordering Name: MS400/BU/PS
• ANSI Code: M155/M128/M135/S
• UPC: 46677278168
• 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.

ADL Supply recommends confirming all specifications with the Philips product data sheet prior to installation. Questions on this lamp or ballast compatibility? Call ADL Supply at 1-800-235-3489.