Product Overview

Osram Dulux L 40W/840 2G11 Compact Fluorescent Lamp – 4000K Cool White

The Osram Dulux L 40W/840 compact fluorescent lamp delivers dependable performance and energy-efficient illumination for commercial and institutional lighting applications. This 40 watt twin-tube CFL lamp features a 2G11 four-pin base and produces approximately 2900 lumens of neutral white light at 4000K.

Part of the trusted Osram Lumilux Dulux L series, this lamp offers excellent reliability with a CRI between 80-89 and compatibility with magnetic, electronic, or dimming ballasts. Its long twin-tube T5 design is commonly used in commercial fixtures, offices, retail lighting, and architectural applications.

Key Features

40 watt compact fluorescent twin tube lamp
4000K cool white color temperature
CRI 80-89
Initial lumen output: 2900 lumens
2G11 four-pin base
T5 long twin-tube design
Rated life: up to 20,000 hours
Compatible with magnetic, electronic, and dimming ballasts
Energy efficient replacement for traditional fluorescent lamps

Technical Specifications

Manufacturer	Osram
Series	Dulux L Lumilux
Model	40W/840 2G11
Wattage	40 Watts
Lamp Type	Compact Fluorescent (CFL) Twin Tube
Base	2G11 4-Pin
Color Temperature	4000K Cool White
CRI	80-89
Initial Lumens	2900
Average Rated Life	20,000 Hours
Maximum Overall Length	570 mm (22.4 in)
Diameter	16 mm (0.63 in)
ANSI Standard	C78.901-2001
Packaging	10 Lamps Per Case