PHILIPS 750W PULSE START METAL HALIDE | 3800K Neutral White | BT37 | EX39 Base

The Philips Protected Metal Halide 750W (M149/O) is a high-performance pulse start lamp engineered for superior light quality and safety in large-scale outdoor and industrial environments. This "O" rated protected lamp features a reinforced internal shroud, making it suitable for both open and enclosed fixtures. Designed for Base-Up (+/- 15°) burn positions, it delivers a powerful 70,000 initial lumens of 3800K neutral white light. Compared to standard probe-start lamps, this pulse start technology provides faster restrike times, improved lumen maintenance over its 20,000-hour life, and higher energy efficiency, making it the ideal solution for parking lots, high-bay warehouses, and floodlighting.

Product Overview

The Philips BT37 Pulse Start Metal Halide lamp represents a significant upgrade over standard switch-start (probe-start) HID lighting. By utilizing a pulse start ballast system, this lamp achieves a 20,000-hour rated life and maintains a higher percentage of its initial brightness over time. The EX39 Exclusionary Mogul Base is designed with an extended eyelet, allowing it to operate safely in both standard mogul sockets and exclusionary sockets used in open-rated fixtures. Its 3800K color temperature provides a clean, neutral white light that enhances safety and visual clarity for industrial high-bays and large-scale outdoor floodlighting.

• Enhanced Safety: "O" rated with an internal shroud to prevent lamp fragments from escaping in the event of an arc tube rupture.
• Superior Performance: Pulse start technology provides faster warm-up and restrike times compared to traditional metal halide.
• Energy Efficient: Better lumen-per-watt efficacy than standard metal halide lamps, reducing total operating costs.
• Application Versatility: Ideal for high-ceiling downlighting, area floodlighting, and large industrial general lighting.

Technical Specifications

• Brand: Philips Lighting
• Wattage: 750W
• ANSI Code: M149/O (Pulse Start)
• Bulb Shape: BT37 (Clear)
• Base Type: EX39 (Exclusionary Mogul Screw)
• Color Temperature: 3800K (Neutral White)
• Color Rendering Index (CRI): 70
• Initial Lumens: 70,000 lm
• Rated Average Life: 20,000 Hours
• Dimensions: 11.5" MOL x 4.7" Diameter
• Burn Position: Base Up +/- 15°

Warnings & Safety Information

• Fixture Rating: Rated for both open and enclosed fixtures due to its protected "O" design.
• UV Warning: This lamp can cause serious skin burns and eye inflammation from short-wave ultraviolet radiation if the outer envelope is broken or punctured.
• Installation: Ensure the power is off before installation. Do not use if the glass is scratched or cracked.
• Ballast Requirement: Must be operated on a compatible ANSI M149 pulse start ballast system.

Primary Applications

• Industrial: High-bay warehouse lighting and manufacturing facilities.
• Outdoor: Parking lot poles, area floodlighting, and security lighting.
• Municipal: Roadway intersections and large public area illumination.
• Commercial: High-ceiling retail spaces and athletic complexes.