GE MVR400/U Multi-Vapor® Metal Halide Lamp – 400W | 4000K | 36,000 Lumens | E39 Base | ED37 | M59/S

36,000 lumens at 4000K Cool White – a professional 400W standard quartz metal halide lamp featuring an E39 mogul screw base, large ED37 bulb shape, 20,000-hour rated life, and universal burn position for high-output industrial and area lighting.

Quick Specs

• Brand: GE Lighting
• Manufacturer Part Number: 43828
• Description: MVR400/U
• ANSI Code: M59/S
• Lamp Type: Standard Metal Halide (Multi-Vapor®)
• Wattage: 400 W
• Base Type: E39 (Mogul Screw)
• Bulb Shape: ED37 (Clear)
• Color Temperature: 4000K
• CRI: 65
• Initial Lumens: 36,000 lm
• Mean Lumens: 23,500 lm
• Rated Average Life: 20,000 hours
• Fixture Rating: Enclosed Fixtures Only
• Maximum Overall Length (MOL): 11.5 in (292.1 mm)

Product Overview

The GE 43828 (MVR400/U) Multi-Vapor® Metal Halide Lamp is the industry-standard 400-watt HID solution for large-scale illumination. Delivering a massive 36,000 initial lumens, this lamp provides the intense brightness required for high-ceiling warehouses, industrial plants, and outdoor area lighting. The 4000K cool white light ensures a clear, professional environment with improved visibility compared to traditional high-pressure sodium sources.

This ED37 lamp features a universal burn position, offering total flexibility for base-up, base-down, or horizontal installation. With a **20,000-hour rated life**, the MVR400/U is engineered for longevity and consistent performance, operating on standard ANSI M59 ballasts common in millions of existing HID luminaires.

Why Choose This Product

• Powerful Illumination: 36,000 lumens provide high-intensity light for spaces with mounting heights of 20 to 50 feet.
• Proven Reliability: The GE Multi-Vapor® line is one of the most trusted names in HID technology for commercial facilities.
• Universal Mounting: Operates in any orientation, making it a "one-lamp-fits-all" solution for your facility's 400W fixtures.
• Cool White Clarity: 4000K color temperature creates a bright, neutral white light that enhances safety and productivity.
• Extended Life Cycle: 20,000-hour rating significantly reduces the cost of relamping and labor in difficult-to-reach locations.
• Large ED37 Profile: The larger glass envelope provides better thermal management for the high-wattage arc tube.

Technical Specifications

Dimensions

Applications

• High-bay warehouse and distribution center lighting
• Industrial manufacturing plants and machine shops
• Commercial parking lots and large outdoor area floods
• Retail "Big Box" stores and supermarket high-ceilings
• Gymnasiums, arenas, and large indoor public spaces

Compatibility & Installation

Fixture Type: This lamp is Enclosed Rated (S). For safety, it must be operated in a luminaire designed to contain hot fragments in the event of a lamp rupture.

Ballast: Requires an ANSI M59 ballast. Compatible with standard probe-start multi-tap, 480V, and specialty HID ballasts from brands such as Advance, Universal, and GE.

Before ordering, confirm:

• ANSI Code – M59: Verify your ballast is rated for M59 standard metal halide lamps.
• Wattage – 400W: Confirm fixture and ballast wattage match.
• Physical Fit: The ED37 is a large bulb (11.5" long). Ensure your fixture has adequate internal clearance.

Safety & Handling Notes

• Enclosed Fixture Only: Do not operate in open luminaires. Failure to use an enclosed fixture may result in fire or injury if the lamp breaks.
• Mercury Content: This lamp contains mercury. Please recycle responsibly through an authorized HID lamp recycler.
• UV Radiation Hazard: Do not use if the outer bulb is cracked. Severe skin or eye inflammation can occur from shortwave UV radiation.
• Turn Power Off: Always disconnect power before relamping to prevent electrical shock.
• Handling: Allow the lamp to cool for at least 20 minutes before handling, as HID lamps operate at extremely high temperatures.