PHILIPS BROADWAY MSR 575 HR | 575W Hot Restrike | 6000K Daylight | G22 Base

The Philips MSR 575 HR (Hot Restrike) is a professional-grade single-ended metal halide lamp engineered for the high-intensity demands of stage, studio, and film production. Part of the Broadway series, this 575-watt lamp delivers a powerful 49,000 lumens of 6000K daylight-balanced light with a high CRI of 90, ensuring perfect color rendition under any conditions. Featuring Philips' innovative Hot Restrike technology, this lamp can be re-ignited immediately after being turned off, eliminating the standard cooling wait times. Its robust T8 design, G22 Bi-post base, and Universal burn position make it a versatile and reliable choice for high-end follow spots, moving head fixtures, and television studio lighting.

Professional Features & Benefits

The MSR 575 HR incorporates Philips' proprietary P3 Technology (Pinch Protection), which allows the lamp to operate at higher temperatures. This results in an extended service life of 1,000 hours and a more consistent light output over the life of the bulb. Its high efficacy of 85 lm/W ensures maximum brightness while maintaining energy efficiency in large-scale productions. Unlike standard metal halide lamps that require several minutes to cool before restarting, the HR (Hot Restrike) capability ensures that daylight-quality lighting is instantly available at any time, protecting live broadcasts and performances from unexpected power interruptions.

• Instant Hot Restrike: Enables hot re-ignition for immediate light availability without the standard HID cooling cycle.
• High Color Rendering (90 CRI): Provides superb color rendition required for professional film, TV set lighting, and photography.
• Universal Burn Position: Operates in any orientation, allowing for use in diverse fixture types from top-down floodlights to horizontal follow spots.
• Stable Light Output: P3 technology provides increased durability and reduces early lamp failures in high-heat environments.

Technical Specifications

• Brand: Philips Broadway
• Philips Order Code: 28727-6 (287276)
• Model: MSR 575 HR 1CT/4
• Wattage: 575W
• Voltage: 95V (Ignition Supply 207V)
• Current (Nom): 6.95 A
• Base Type: G22 (Medium Bi-Post Prefocus)
• Bulb Shape: T8 (Clear)
• Color Temperature: 6000K (Daylight)
• Initial Lumens: 49,000 lm
• Rated Life: 1,000 Hours
• Dimensions: 145mm (5.71") MOL x 30mm (1.18") Diameter
• Light Center Length (LCL): 70mm (2.76")

Safety & System Compatibility

• Ballast Requirement: Must be operated on high-quality professional ballasts and fixtures designed specifically for 575W Hot Restrike Metal Halide lamps.
• UV Warning: This lamp emits high levels of UV radiation. It must be operated in a fully enclosed fixture with UV-blocking glass to prevent serious skin and eye damage.
• Handling: Do not handle the quartz bulb with bare hands; skin oils can cause the bulb to overheat and fail. Clean with denatured alcohol if touched.
• Burn Position: Rated for Universal operation, but ensure fixture cooling is adequate for the intended orientation.

Professional Applications

• Theatre & Stage: High-output follow spots and moving head fixtures for concert touring and theatrical productions.
• Film & Television: Ideal for on-set daylight fill lighting and studio wash lights where 6000K color temperature is required.
• Photography: Professional studio lighting systems requiring high color accuracy and instant re-strike capabilities.
• Live Events: Large-scale event floodlighting and architectural display lighting.