SYLVANIA 64971 | MC39TC/U/G8.5/830 PB 39W Ceramic Metal Halide Lamp

The Sylvania 64971 (MC39TC/U/G8.5/830 PB) is a premium, high-efficiency **39W ceramic metal halide lamp** from the industry-leading Metalarc® Powerball® series. Operating at a nominal **86V** via an **ANSI C130/E** ballast circuit, this ultra-compact, single-ended **T4.5 tubular lamp** features a precision-engineered **G8.5 Bi-Pin base**. Emitting a powerful **3,400 initial lumens** of rich, **3000K Warm White (830)** light, it utilizes advanced pulse-start technology and an integrated UV-Stop™ quartz envelope to achieve exceptional lumen maintenance and stable, lamp-to-lamp color consistency. This lamp is engineered strictly for **enclosed fixtures** in demanding retail, architectural, and commercial highlight systems.

The Metalarc® Powerball® Ceramic Advantage

Sylvania Powerball® lamps feature a patented spherical ceramic arc tube design that ensures maximum structural integrity, superior thermal stability, and exceptional color control over a long **15,000-hour service life**. Unlike legacy quartz metal halide alternatives that experience severe color shifting and quick light degradation, the Powerball arc chamber maintains a tight precision variance of ±200K lamp-to-lamp. Its integrated **UV-Stop™ capsule technology** filters out harmful ultraviolet wavelengths, drastically reducing the risk of material fading, fabric yellowing, and showcase degradation in professional merchandising displays.

• Pulse Start Engineering: Driven by advanced pulse-start configurations for rapid 2-4 minute warm-ups, optimized ballast matching, and stable lumen retention.
• High Thermal Efficiency: Generates significantly less radiant heat compared to halogen spot lamps of equivalent brightness, protecting sensitive commercial showcases.
• Superior Maintenance Curve: Retains up to 90% of its initial lumen output across its working lifecycle, keeping spaces consistently vibrant.
• System Customization: Eligible for the comprehensive Sylvania QUICK 60+ System Warranty when deployed alongside premium Quicktronic® MH electronic ballasts.

Technical Specifications

• Brand: Sylvania (LEDVANCE)
• Product Code / NAED: 64971
• Ordering Abbreviation: MC39TC/U/G8.5/830 PB
• Series Name: Metalarc® Powerball®
• Wattage: 39W
• Nominal Arc Voltage: 86V
• ANSI Ballast Code: C130/E
• Lamp Shape: T4.5 Tubular
• Base Type: G8.5 (Single-Ended Bi-Pin)
• Initial Lumens: 3,400 lm
• Mean Lumens: 2,720 lm
• Color Temperature: 3000K (Warm White)
• Color Rendering Index (CRI): 82
• Operating Position: Universal
• Maximum Overall Length (MOL): 3.19 Inches (81 mm)
• Bulb Diameter: 0.591 Inches (15 mm)
• Average Rated Life: 15,000 Hours

Premium Commercial Applications

• High-End Retail Showrooms: Provides exceptional color pop and vibrant detail on luxury apparel, apparel grids, and display shelves.
• Museum & Gallery Spotlighting: Safeguards sensitive, high-value oil paintings and historical artifacts utilizing UV-Stop shielding.
• Boutiques & Jewelry Showcases: Delivers sharp, sparkling high