SYLVANIA 20724 | DULUX® D/E 18W 3000K 4-Pin Double Tube Compact Fluorescent Lamp

The Sylvania 20724 DULUX® D/E (CF18DD/E/830/ECO) is a commercial-grade, high-efficacy **18W compact fluorescent lamp (CFL)** engineered for shallow downlights, architectural sconces, and space-saving modular fixtures. Outfitted with a standard **G24q-2 4-pin base** and a dual-tube **T4 configuration**, this energy-saving bulb delivers a comfortable **3000K Soft White** color presentation. Utilizing advanced rare-earth tri-phosphors to achieve an **82 CRI** color rendering accuracy baseline, it provides **1,150 initial lumens** over a **12,000-hour rated average life**. As part of the **Ecologic®** product line, it passes the Federal TCLP criteria for non-hazardous classification, ensuring a sustainable, dimmable, and high-performance lighting solution for busy corporate, hospitality, and retail networks.

Advanced DULUX® D/E Engineering and Sustainable Ecologic® Design

Sylvania DULUX® D/E plug-in compact fluorescent lamps optimize space-saving fixture constraints while sustaining consistent light output. This 4-pin variant is explicitly engineered for use with high-frequency electronic ballasts and advanced dimming architectures, unlocking granular lighting control and enhanced energy performance compared to traditional 2-pin models. Built under Sylvania’s strict **Ecologic® standards**, the internal lamp formulation passes the Federal Toxic Characteristic Leaching Procedure (**TCLP**) standards for low mercury content, making it eligible for classification as non-hazardous commercial waste in most jurisdictions.

• Flexible Control Options: Designed for use with electronic dimming and specialized CFL ballasts, giving you smooth light regulation from low-end moods to high-focus output.
• High Lumen Maintenance: Delivers a strong 1,150 initial lumens with superior engineering that sustains a high **989 mean lumens** at the midpoint of lamp life.
• Exceptional Color Accuracy: Features an 82 CRI rating that beautifully renders fabrics, wall textures, and skin tones with a warm, natural balance.
• Incandescent Efficiency Tradeoff: Provides an easy 4-to-1 wattage rule of thumb, allowing an efficient 18W plug-in module to match the light output of a standard 75W incandescent bulb.

Comprehensive Technical Specifications

• Brand: Sylvania
• Product Code / NAED: 20724
• Ordering Abbreviation: CF18DDE830ECO (CF18DD/E/830/ECO)
• Series / Product Family: DULUX® D/E (Ecologic® Brand)
• Technology Type: Compact Fluorescent Lamp (CFL) - Plug-In
• Nominal Wattage: 18W
• Bulb Shape Configuration: T4 Double Tube (T4x2 Profile)
• Base Type: G24q-2 (4-Pin Plug-In Interface)
• Initial Lumens: 1,150 lm (Measured at 25°C ambient after 100 runtime hours)
• Mean Lumens: 989 lm (Measured at 40% of average rated lamp life)
• Color Temperature: 3000K (Soft White Spectrum / Color Code 830)
• Color Rendering Index (CRI): 82
• Average Rated Lifespan: 12,000 Hours
• Maximum Overall Length (MOL): 5.8 Inches (147 mm)
• Industry Standards: IEC 60901-2518 Compliant
• Standard Case Quantity: Shipped in standard packs of 50 lamps per case (1/SKU)

System Integration, Safety Guidelines & End-of-Life Controls

• Ballast Compatibility: DULUX® D/E lamps require an external electronic ballast to operate correctly. Minimum starting temperatures and ignition profiles are governed by your ballast choice; check the manufacturer's spec sheets before installing in unheated environments.
• NEMA End-of-Life (EOL) Safety Notice: The National Electrical Manufacturers Association (NEMA) notes an industry-wide issue where T2, T4, and T5 sub-compact fluorescent lamps running on high-frequency electronic ballasts can experience an abnormal end-of-life condition. This can cause the bulb wall near the base to crack, or overheat the plastic housing, which may damage the socket. NEMA strongly recommends powering these modules exclusively with electronic ballasts that feature an **integrated EOL shutdown circuit** to isolate the socket safely if a failure occurs.
• Operating Switching Cycles: Stated catalog lifespans are derived from a standardized 3-hour switching cycle per ANSI specifications. Extending the duration of the operational burn cycle will yield a substantial increase in the overall average lifespan of the tube.
• Disposal and Environmental Compliance: Sylvania Ecologic® components meet the strict Federal TCLP testing standards to aid facility managers with environmental compliance. Because lamp disposal and recycling protocols vary by state, please verify your local requirements at www.lamprecycle.org.

Recommended Commercial & Hospitality Applications

• Commercial Downlights: Ideal for shallow recessed ceiling downlights in busy office hallways, elevator lobbies, and reception desks.
• Hospitality Sconces: Perfect for corridor wall sconces, accent lighting, and decorative vanity fixtures inside hotels, restaurants, and multifamily spaces.
• Task and Retail Illumination: Provides clean, warm light over retail service counters, display boxes, and under-cabinet institutional workstations.