PHILIPS 1000W | BT37 Pulse Start Metal Halide | 3700K Natural White

The Philips 1000W BT37 Pulse Start Metal Halide Lamp (ANSI M141/E) is a high-output, commercial-grade lighting solution engineered for large-scale area illumination. Utilizing advanced pulse-start technology, this lamp provides up to 25% higher light output and superior lumen maintenance compared to standard switch-start metal halide lamps. With a natural 3700K color temperature and a massive 96,000 initial lumen output, it is the industry standard for stadium lighting, industrial floodlights, and street pole fixtures. Designed for Base Up (±15°) operation, this lamp features a Mogul E39 base and is rated for a long 15,000-hour life, significantly reducing maintenance costs in difficult-to-reach high-bay environments.

Product Overview

The Philips BT37 Pulse Start lamp delivers a "Natural White" light (65 CRI) that is optimized for outdoor visibility and large-scale industrial security. Unlike older metal halide technology, pulse start lamps offer 50% faster hot restrike times and up to 35% energy savings when paired with the correct electronic or magnetic M141 ballast. Its robust 11.5-inch tubular-elliptical (BT37) design is built to withstand the rigors of outdoor street lighting and high-vibration industrial applications. This lamp complies with FDA 21 CFR 1040.30, ensuring high safety standards for UV radiation management when used in required enclosed fixtures.

• Pulse Start Efficiency: Higher efficacy (up to 120 lm/W) and longer life than standard 1000W metal halide.
• Superior Lumen Maintenance: Maintains up to 90% of its initial light output even at the halfway point of its rated lifespan.
• Natural White Light: 3700K color temperature provides high contrast and visibility for sports and industrial sites.
• Weather Resistant: Excellent cold-weather starting performance for year-round outdoor reliability.

Technical Specifications

• Brand: Philips Lighting
• Ordering Code: MS1000/BU/BT37/PS
• ANSI Code: M141/E
• Wattage: 1000W
• Bulb Shape: BT37
• Base Type: E39 Mogul Screw
• Color Temperature: 3700K
• CRI: 65
• Initial Lumens: 96,000 lm
• Rated Average Life: 15,000 Hours
• Burn Position: Base-Up ±15°
• Dimensions: 11.5" MOL x 4.6" Diameter

Safety & Handling Information

• Enclosed Fixture Required: This lamp must be operated in a fully enclosed fixture capable of containing hot glass fragments in the event of a lamp rupture.
• UV Hazard: Ultraviolet radiation can cause skin and eye irritation. Do not operate if the outer glass envelope is cracked or broken.
• Ballast Compatibility: Designed for use strictly with ANSI M141 pulse-start ballasts. Operation on incompatible ballasts will cause premature failure or safety risks.
• Automatic Shutdown: For occupied areas, the use of lamps with internal automatic shutdown features or UV-protected fixtures is strongly recommended.

Primary Applications

• Sports Facilities: Stadiums, sports fields, and arena floodlighting.
• Industrial Lighting: High-bay warehouses, manufacturing floors, and shipyards.
• Public Infrastructure: Street lighting, parking lot poles, and transportation hubs.
• Security Lighting: Large-area outdoor floodlighting and perimeter security.