PHILIPS 55W T5 Circular | 3000K Warm White | 2GX13 4-Pin Base | Silhouette HO

Philips 16593-6 (FC12T5/830/HO) is a high-output circular fluorescent lamp from the Silhouette T5 series, designed to provide powerful illumination in a sleek, space-saving form factor. This 55W lamp features a thin 5/8-inch diameter tube, allowing for fixture designs that are up to 45% smaller than traditional T9 systems without sacrificing light intensity. Delivering a warm 3000K white light with an 80+ CRI, it is the ideal solution for modern architectural luminaires, low-profile ceiling fixtures, and decorative commercial lighting. Engineered for use with programmed-start electronic ballasts, it ensures maximum lamp life and consistent performance in high-traffic professional environments.

Product Overview

The Philips Silhouette T5 Circular lamp represents the peak of fluorescent miniaturization. By utilizing a circular geometry with a slim T5 tube, this lamp allows architects and designers to create shallow, uniform light distributions that are impossible with linear tubes. The 3000K warm white spectrum provides a welcoming ambiance, while the High Output (HO) technology ensures the brightness required for task-oriented spaces like offices and retail shops. With a 12,000-hour rated life, it helps reduce maintenance frequency, making it a sustainable choice for large-scale facility management.

• Architectural Versatility: Circular shape and slim profile enable the creation of compact, high-performance fixtures with elegant, rounded aesthetics.
• Superior Color Quality: A CRI range of 80–89 ensures that colors appear natural and vibrant, critical for retail, hospitality, and office environments.
• Advanced Ballast Compatibility: Designed for use with programmed-start electronic ballasts to provide flicker-free operation and extended lamp life.
• Optimized Efficiency: HO technology delivers more lumens per watt than standard circline lamps, reducing overall energy consumption and heat load.

Technical Specifications

• Brand: Philips MasterColor / Silhouette
• Order Code: 16593-6
• Model: FC12T5/830/HO (MasterColor TC5C 55W-830)
• Wattage: 55W
• Base Type: 2GX13 (4-Pin Circular)
• Color Temperature: 3000K (Warm White)
• Color Rendering Index (CRI): 80–89
• Rated Average Life: 12,000 Hours
• Dimensions: 12" Nominal Diameter x 5/8" (16mm) Tube Diameter
• Starting Method: Programmed Start

Compatibility & Application Notes

• Ballast Requirement: Must be used with Programmed Start electronic ballasts. Improper ballast use will significantly shorten lamp life and may lead to socket damage.
• Size Comparison: Occupies a much smaller footprint than traditional T9 Circline bulbs, enabling "thin" fixture designs and recessed ceiling applications.
• Ideal Use Cases: Public buildings, professional office suites, boutique restaurants, supermarkets, and hotel lobbies.