OSRAM SYLVANIA HPL | 375W 115V | Long Life Source Four Replacement Lamp

The Sylvania HPL 375W (54648) is a high-performance quartz halogen lamp engineered specifically for the demanding requirements of stage, studio, and architectural lighting. Designed as a high-efficiency replacement for Source Four fixtures, this 115V lamp features a specialized Heat Sink Bi-Pin base that dissipates thermal energy more effectively than standard bases, significantly extending the life of both the lamp and the socket. With an impressive 1,000-hour rated life and a crisp 3050K color temperature, it delivers a consistent, high-intensity clear light with a perfect CRI of 100, ensuring absolute color accuracy for television broadcasts and theatrical performances.

Exceptional Performance for Theatrical Lighting

The Sylvania 54648 is optimized for fixtures that utilize HPL technology, allowing for higher light output from lower wattages compared to traditional studio lamps. Its compact filament design is precision-aligned to work with the ellipsoidal reflectors of industry-standard stage lights, providing a sharp, uniform beam without hot spots. The Long Life designation makes it an ideal choice for permanent architectural installations and television studios where reducing the frequency of lamp changes in difficult-to-reach locations is critical for operational efficiency.

• Ultra-High Fidelity: CRI of 100 ensures skin tones and set colors appear vivid and natural.
• Advanced Cooling: Integrated heat sink base prevents socket pitting and premature failure.
• Quartz Construction: High-purity quartz glass withstands extreme thermal shock during dimming cycles.
• Versatile Use: Compatible with all ETC Source Four lighting instruments and equivalents.

Technical Specifications

• Brand: Osram Sylvania
• Order Code: 54648
• Wattage: 375W
• Voltage: 115V
• Base Type: 2-Pin (with integral Heat Sink)
• Color Temperature: 3050K
• Color Rendering Index (CRI): 100
• Rated Average Life: 1,000 Hours
• Bulb Finish: Clear Quartz
• Dimensions: 104 mm (MOL) x 19 mm (Diameter)

Primary Applications

• Stage & Theater: Ideal for ellipsoidal spotlights and theater wash lights.
• Television Studios: Reliable performance for news sets and studio production.
• Architectural Lighting: Used in high-performance fixtures for accentuating buildings and monuments.
• Event Production: Preferred for touring shows requiring long-lasting, dependable sources.