SYLVANIA FO28/841/XP/SS/U6 | Octron® 800XP® SuperSaver® 28W 4100K U-Bend T8 Lamp

The Sylvania Octron® 800XP® SuperSaver® (FO28/841/XP/SS/U6) is a commercial-grade, high-performance **28W linear U-bend fluorescent lamp** engineered to replace standard 32W T8 tubes without sacrificing visual clarity. Featuring a standard **G13 Medium Bi-Pin base** and a precision **6-inch leg spacing footprint**, this premium **Curvalume®** formatted tube outputs a bright **2,590 initial lumens** in a crisp, focus-enhancing **4100K Cool White** color temperature. Utilizing advanced rare-earth tri-phosphors to achieve an elite **85 CRI** color accuracy profile, it offers an exceptional **18,000 to 30,000-hour rated lifespan** depending on the specific burning cycle and ballast design. This energy-saving bulb delivers outstanding lumen maintenance, preserving **2,435 mean lumens** across its service life to help corporate facilities lower energy consumption and operational maintenance costs.

High-Efficacy U-Bend Geometry and Advanced System Optimization

Sylvania Octron® Curvalume® U-bend lamps maximize illumination density within compact modular fixtures, packing the standard 4-foot linear performance profile into a space-saving 2-foot format. This energy-saving SuperSaver® edition drops system consumption by 4 watts per socket compared to traditional T8 tubes, generating massive multi-ballast structural overhead cuts. Designed to execute cleanly on high-frequency electronic ballasts—including instant-start, rapid-start, or programmed rapid-start topologies engineered specifically for T8 tracks—this high-efficacy lamp ensures seamless institutional integration and pristine commercial color stability.

• Efficient 28W Retrofit Engineering: Safely drops power consumption across multi-tube setups while sustaining excellent luminous exitance levels.
• Elite Extended Performance Lifecycle: Rated up to 30,000 operational hours under optimized billing intervals to keep facility relamping cycles to an absolute minimum.
• High-Contrast 85 CRI Visual Engine: Delivers exceptional color rendering properties, making text, technical layouts, and interior environments appear sharp and highly defined.
• Industrial Modular Packing: Maintained in specialized multi-layered commercial packs containing 15 components per case to protect delicate glass curvatures during shipment.

Comprehensive Technical Specifications

• Brand: Sylvania
• Product Code / NAED: 22062
• Ordering Abbreviation: FO28/841/XP/SS/U6
• Series / Product Family: Octron® 800XP® SuperSaver® Curvalume®
• Technology Type: Linear U-Bend Fluorescent Lamp
• Wattage: 28W (Energy Saving Replacement for 32W T8 Lamps)
• Bulb Shape Geometric: T8 U-Bend Tube (1.00-Inch / 25.4mm Tube Diameter)
• Leg Center-to-Center Distance: 6 Inches (Leg Spacing Profiling)
• Base Type: G13 (Medium Bi-Pin)
• Initial Lumens: 2,590 lm (Measured at 25°C ambient after 100 runtime hours)
• Mean Lumens: 2,435 lm (Measured at 40% of average rated lamp life)
• Color Temperature: 4100K (Cool White Spectrum)
• Color Rendering Index (CRI): 85
• Average Rated Lifespan: 18,000 to 30,000 Hours (Subject to starter topology and system variables)
• Maximum Overall Length (MOL): 22.6 Inches (574 mm)
• Package Case Quantity: 15 Lamps per Case

System Integration & Ballast Safety Guidelines

• Instant-Start Socket Requirements: When interfacing this U-bend lamp with high-frequency electronic instant-start systems, make sure both wires or contacts of each individual socket are cleanly shunted (connected to each other). Wire them directly to the appropriate ballast leads using National Electrical Code (NEC) compliant methods. These lamps handle instant-start configurations smoothly with ballast factors ranging from a minimum of 0.71 to a maximum of 1.20 at nominal input voltages.
• SuperSaver® Operation & Ballast Constraints: For energy-saving applications, always power lamps using F32T8 ballasts that supply a minimum open-circuit voltage profile of ≥550V RMS at the lamp base. Avoid using this lamp inside: (1) remote fixtures with open-circuit voltages below 550V, (2) rapid-start ballasts below 570V, (3) specialized air-handling units, (4) low power factor ballasts, or (5) unlisted inverter-driven emergency battery systems. Defying these constraints can result in striking failure, poor cathode heating, or permanent electrical incompatibility.
• Burning Cycle Longevity: Stated catalog lifespans are derived from a standardized 3-hour switching cycle. Extending the duration of the operational burn cycle will yield a substantial increase in the overall average lifespan of the tube.
• Cold Environment Operational Warning: The minimum starting threshold is determined by the underlying ballast engineering. Note that if fixtures are exposed to strong cross-drafts or ambient temperatures fall below 60°F (or below 70°F for comparable 25W variants), visual lamp striation (a rhythmic pulsing pattern running down the bent tube) or severe brightness decay may occur. This is a temporary physical reaction that does not harm the lamp, and output will normalize once ambient conditions rise.
• Legacy Ballast Compatibility: Can be run natively on traditional magnetic rapid-start ballasts built to drive 265 mA T8 lamp profiles, providing stable commercial performance.

Recommended Commercial & Institutional Applications

• Modular 2x2 Ceiling Troffers: Perfect for corporate office drop-ceilings and recessed modular fixtures requiring energy-efficient cool white light.
• Institutional Corridor Grids: Highly suited for schools, hospital wings, and public municipal corridors using compact square downlight layouts.
• Commercial Task Environments: Ideal for banking terminals, reception desks, and retail service environments requiring high visual contrast and low glare.