Product Overview

SYLVANIA CF13DD/E/835/ECO 13W 3500K Natural White 5.20 in | Dulux D/E T4 CFL Bulb | G24q-1 Bi-Pin
CF13DDE835ECO is a 13W Natural White 3500K T4 Double Quad CFL with a G24q-1 4-Pin base, 5.20 in maximum overall length, and 12,000-hour rated life.
| Watts 13W | Length 5.20 in | CCT 3500K | Base G24q-1 | Lumens 900 |
Product Overview
This compact fluorescent lamp is designed for high-performance commercial and residential recessed lighting. Providing a crisp, natural white light, it is engineered for long life and high efficiency in a compact quad-tube design.
- Double-tube T4 design ensures high lumen density and excellent color quality.
- 4-Pin G24q-1 base is optimized for use with electronic and dimming ballasts.
- Light appearance: Natural White 3500K with 82 CRI.
- Rated life: 12,000 hours for reduced maintenance and disposal costs.
Technical Specifications
- Brand: Sylvania
- Model: CF13DD/E/835/ECO
- SKU: 20671
- Wattage: 13W
- Lamp Family: Dulux D/E
- Lamp Type: T4 Double Tube CFL
- Base: G24q-1 (4-Pin)
- Length (MOL): 131 mm (5.20 in)
- Initial Lumens: 900 lm
- Color Temperature: 3500K
- Light Appearance: Natural White
- CRI: 82
- UPC: 046135206719
Before You Order
- Verify the base type: G24q-1 (4-Pin). Note that 2-pin bases (G24d series) are not interchangeable.
- Confirm your ballast is electronic or dimming and rated for 13W quad-tube operation.
- Match the wattage (13W) exactly to avoid potential starting or lifespan issues.
- NEMA recommends ballasts with end-of-life (EOL) shutdown circuits for high-frequency systems.
- Match the existing color temperature: 3500K.
Additional Information
Sylvania Ecologic lamps are TCLP compliant and classified as non-hazardous waste in most jurisdictions. Following the 4:1 wattage ratio rule, this 13W CFL is a highly efficient alternative to standard incandescent lamps. Optimal light output is reached after the first 100 hours of operation.