GE MVR320/VBU/HO/PA PulseArc® Metal Halide Lamp – 320W | 4000K | 31,000 Lumens | E39 Base | ED28 | M132/E

31,000 lumens at 4000K Cool White with PulseArc® Technology – a high-output 320W Pulse Start metal halide lamp featuring an E39 mogul screw base, ED28 bulb shape, an exceptional 20,000-hour rated life, and optimized vertical base-up operation.

Quick Specs

• Brand: GE Lighting
• Manufacturer Part Number: 27501
• Description: MVR320/VBU/HO/PA
• ANSI Code: M132/E
• Lamp Type: Pulse Start Metal Halide (Multi-Vapor®)
• Wattage: 320 W
• Base Type: E39 (Mogul Screw)
• Bulb Shape: ED28
• Color Temperature: 4000K
• CRI: 65
• Initial Lumens: 31,000 lm
• Mean Lumens: 18,000 lm
• Rated Average Life: 20,000 hours
• Fixture Rating: Enclosed Fixtures Only
• Maximum Overall Length (MOL): 8.25 in (209.5 mm)

Product Overview

The GE 27501 (MVR320/VBU/HO/PA) PulseArc® Metal Halide Lamp is a high-performance 320-watt HID solution engineered for maximum light delivery in vertical orientations. Part of the PulseArc® series, this lamp delivers an impressive 31,000 initial lumens with a high efficacy of 97 lumens per watt. Its 4000K Cool White output provides excellent visibility, making it the preferred choice for industrial high-bay lighting and large-scale commercial facilities.

Designed specifically for Vertical Base Up (VBU) operation, this lamp utilizes pulse start technology to achieve faster warm-up times and superior color stability over its long 20,000-hour rated life. The M132/E ANSI rating ensures precise electrical compatibility with modern pulse start ballasts, reducing energy costs while increasing lighting performance.

Why Choose This Product

• Exceptional Light Output: 31,000 lumens provide intense, clear illumination for ceilings 20 feet and higher.
• PulseArc® Longevity: Rated for 20,000 hours, significantly outlasting standard probe start lamps and reducing maintenance cycles.
• Optimized VBU Performance: Specifically tuned for vertical mounting to maximize lumen maintenance and lamp stability.
• High Efficacy: Delivers 97 LPW, providing more light for less energy compared to standard 400W HID systems.
• Crisp Cool White: 4000K color temperature is ideal for productivity and safety in work-heavy industrial environments.
• Mogul E39 Base: Heavy-duty construction ensures a secure fit in standard industrial HID sockets.

Technical Specifications

Dimensions

Applications

• Industrial warehouses and distribution centers
• Manufacturing facilities and assembly floors
• Retail "Big Box" store high-bay fixtures
• Gymnasiums and large indoor sports arenas
• Street and parking area lighting (when in VBU orientation)

Compatibility & Installation

Fixture Type: This lamp is Enclosed Rated (E). Use only in luminaires designed to contain hot fragments in the rare event of a lamp rupture.

Ballast: Requires an ANSI M132 Pulse Start ballast. It is not compatible with older M59 probe-start or non-pulse HID ballasts.

Before ordering, confirm:

• Burn Position: This lamp is designed for Vertical Base Up (±15°). Using this lamp in horizontal fixtures will lead to premature failure and poor performance.
• ANSI Code – M132: Ensure your ballast is rated for M132 pulse start operation.
• Enclosure Rating: Ensure your fixture is fully enclosed and UL-rated for HID operation.

Safety & Handling Notes

• Enclosed Fixture Only: To prevent injury or fire, this lamp must be operated in a fully enclosed fixture.
• Mercury Content: Contains mercury. Dispose of safely via authorized HID recycling programs.
• High UV Risk: Do not operate if the outer glass envelope is cracked or punctured. UV radiation can cause severe skin and eye burns.
• Installation Safety: Always de-energize the fixture before removing or installing a new lamp.
• Thermal Warning: Allow the lamp to cool completely (approx. 15-20 minutes) before handling.