SYLVANIA Dulux® L 18W 3000K | Twin-Tube 4-Pin 2G11 Compact Fluorescent Lamp

The Sylvania Dulux® L 18W Compact Fluorescent Lamp (FT18DL/830/RS) is a commercial-grade, high-performance **18W twin-tube T5 plug-in lamp** engineered for high-lumen, low-profile fixtures. Featuring a standard **2G11 4-Pin base** and a length of **10.5 inches**, this premium linear compact fluorescent bulb delivers a powerful **1,250 initial lumens** in a welcoming **3000K Warm White** color temperature. Utilizing advanced tri-phosphor chemistry to achieve an **80 CRI** color fidelity threshold, it offers an exceptional **20,000-hour rated lifespan**. Highly versatile, this energy-efficient lamp is ideal for shallow recessed troffers, surface-mounted fixtures, and architectural downlights in demanding commercial sectors.

Long-Life Architectural Illumination and Multi-Ballast Integration

Sylvania Dulux® L compact fluorescent lamps offer high spatial efficiency, rendering standard linear tube light levels inside a consolidated, single-ended layout. Engineered in strict compliance with the industry standard **ANSI C78.901-2001**, this 18W variant supports rapid-start operation loops across magnetic ballast networks, high-frequency electronic ballasts, or dedicated architectural dimming panels. With a massive **20,000-hour rated service life** (calculated using standard 3-hour switching cycles), it substantially expands corporate facility maintenance schedules, dropping lamp replacement replacement overhead while cutting general grid consumption compared to legacy incandescent arrays.

• Extended Maintenance Longevity: Built with premium electrodes that secure up to **20,000 hours** of uniform output, significantly lowering operational upkeep inside public buildings.
• High-Efficiency Output: Yields a robust 1,250 initial lumens from just 18W to 19.5W nominal drawer, facilitating a high lumen-per-watt efficiency footprint.
• Seamless Multi-System Compatibility: Operates universally on standard high-frequency electronic, magnetic, or dimming ballasts rated for 18W 2G11 lamps.
• Cross-Industry Retrofits: Serves as a direct, drop-in replacement layout for matching competitive configurations from GE, Philips, and Ushio.

Technical Specifications

• Brand: Sylvania
• Series / Product Family: Dulux® L
• Technology Type: Compact Fluorescent Lamp (CFL) - Linear Twin-Tube
• Nominal Wattage: 18W / 19.50W Actual
• Bulb Configuration: T5 Tube Profile (0.630-Inch Diameter)
• Base Type: 2G11 (Single-Ended 4-Pin Plug-In)
• Initial Lumens: 1,250 lm (Measured after 100 operating hours)
• Color Temperature: 3000K (Warm White Light Spectrum)
• Color Rendering Index (CRI): 80
• Average Rated Lifespan: 20,000 Hours
• Maximum Overall Length (MOL): 10.5 Inches
• Industry Standards Compliance: ANSI C78.901 - 2001 Standard Spec

Industry Compatibility Cross-Reference

This 18W 4-pin Dulux L bulb matches and directly swaps with the following industry manufacturer components:

• GE / Current: F18BX/SPX30/RS (F18BXSPX30RS)
• Philips / Signify: PL-L 18W/830/4P (PL-L 18W/30/4P)
• Ushio: CF-L18SE/830

Recommended Companion Ballast Replacements

For optimal system efficiency and safety, pair this 18W 2G11 lamp with certified replacement ballast gear:

• Sylvania Quicktronic: 51833 QTP2x26CF/UNV DM (Electronic Universal Voltage)
• Universal Triad / Vossloh-Schwabe: CT218UNVME (Universal Multi-Wattage Series)

Ballast Operation & NEMA End-of-Life Guidelines

• EOL Shutdown Circuits: In accordance with NEMA recommendations for high-frequency compact fluorescent operation, it is highly suggested to utilize electronic ballasts outfitted with an explicit **End-of-Life (EOL) shutdown circuit**. This protective safety safeguard safely isolates power loops during rare tube failure modes, preventing intense base-area overheating or localized socket stress.
• Starting Environments: The minimal operating starting temperature baseline is governed entirely by the integrated ballast mechanism. Always review manufacturer spec sheets prior to mounting in freezing spaces.
• Extended Run Efficiencies: Lifespan ratings are derived using a standardized 3-hour cycling framework. Operating the system on extended, continuous burning cycles yields a proportional increase in average overall hours of lamp life.

Recommended Commercial Applications

• Shallow Recessed Modular Troffers: Ideal for 2x2 architectural layouts in spaces where vertical ceiling plenums are severely constrained.
• Task and Under-Cabinet Systems: Highly suited for office work cubicles, library reception desks, and institutional medical workstations.
• Surface-Mounted Passageways: Provides clean, warm 3000K ambient coverage inside commercial stairwells, corridor utility strips, and parking facility public thresholds.