PHILIPS 23249-6 | MS175/M/BU/PS | 175W Pulse Start Metal Halide | 4000K

The Philips 23249-6 (MS175/M/BU/PS) is a high-efficiency 175-watt pulse start metal halide lamp designed for superior lumen maintenance and long-lasting performance. Engineered with Pulse Start technology, this ED17 lamp offers a 50% faster warm-up and restrike time compared to traditional probe-start lamps. With a crisp 4000K Cool White color temperature and a high efficacy of up to 120 lumens per watt, it provides a bright, energy-efficient lighting solution for commercial and industrial spaces. The Base-Up (BU) burn position is optimized for downlighting and floodlighting applications, while the 10,000-hour rated life helps lower the total cost of ownership by reducing maintenance frequency.

Product Overview

The Philips MS175/M/BU/PS provides up to a 25% increase in maintained light output over standard metal halide lamps. By utilizing a pulse start system, this lamp achieves higher efficacy and a longer life, making it an ideal upgrade for existing probe-start systems (when used with the appropriate ballast). Its compact ED17 design allows it to fit into smaller fixtures while still delivering the high-intensity discharge power required for parking lots, warehouses, and retail environments. This lamp is specifically rated for enclosed fixtures and features a restricted Base-Up ±15° burning position to ensure maximum light output and safety.

• Enhanced Efficiency: High LPW (lumens per watt) reduces energy consumption and operational costs.
• Faster Start Times: Significantly reduced warm-up and restrike periods improve performance after power interruptions.
• Reliable Longevity: 10,000-hour rated life ensures consistent illumination for long-term projects.
• Quality Light: 4000K temperature provides a crisp, professional "Cool White" atmosphere.

Technical Specifications

• Brand: Philips
• Order Code: 23249-6 (232496)
• Model: MS175/M/BU/PS
• ANSI Code: M152/M137/E
• Wattage: 175W
• Base Type: E26 (Medium Screw-in)
• Bulb Shape: ED17
• Color Temperature: 4000K - 4200K
• CRI: 68
• Rated Life: 10,000 Hours
• Burn Position: Base-Up ±15°
• Dimensions: 5.43" MOL x 3.5" Diameter

Safety & Installation Guide

• Fixture Rating: Must be used in an Enclosed Fixture only.
• Ballast Compatibility: Requires a pulse start ballast matching ANSI codes M152 or M137.
• Burn Position: Designed for Base-Up installation. Operating outside of the ±15° vertical range can reduce lamp life and light output.
• UV Warning: This lamp can cause skin burns and eye inflammation if the outer glass is broken. If the bulb breaks, turn off power immediately and replace the unit.

Primary Applications

• General Lighting: Commercial interiors, showrooms, and retail spaces.
• Downlighting: High-ceiling recessed fixtures in lobbies or offices.
• Flood Lighting: Security and perimeter lighting for commercial buildings.
• Industrial: Manufacturing plants and warehouse spaces requiring high-output cool white light.