The Dura Duralux D 13W lamp is a compact fluorescent lamp with a G23d- 2 pin base, offering energy-efficient illumination with a warm or cool white light suitable for indoor settings.

Key Specifications
Wattage: 13W nominal, with a typical construction wattage around 13–13.9 W 
Base type: G24d-1 single-ended two-pin plug-in for compact control gear operation 
Light color / Color temperature: Available in warm white (approx. 3000K) and cool white/light daylight options 
The “830” or “840” designation indicates warm or cool white, respectively 
Luminous flux: Around 870–900 lumens depending on color temperature 
Color rendering index (CRI): ≥80, which ensures good color appearance for indoor lighting 

Dimensions: Compact design with an overall length of ~136–138 mm and diameter of 11–12 mm, making it suitable for various small to medium indoor fixtures 

Lifespan: Typically about 6,500–10,000 hours with survival factors decreasing over lifetime, depending on usage duration 
Mercury content: Approximately 1.3–1.6 mg, in line with standard CFL requirements 
Energy efficiency class: Ranges from A to G depending on manufacturer and product variant 
Dimmability: Not dimmable; designed for standard on/off operation 

Applications
Dura Duralux D 13W lamps are ideal for a variety of indoor environments, including:
Offices, public buildings, and shops. Supermarkets, department stores, and hotels.
Restaurants, industry areas, or any space requiring compact, energy-efficient lighting with good color rendering 

Advantages
Compact and easy to install with the 2-pin plug-in design.
Balanced lighting for both warm and cool white interiors.
Energy-efficient alternative to older incandescent or halogen bulbs, providing substantial electricity savings 
Good luminous output with a long service life, suitable for continuous or frequent operation.