This is a 26w Dulux D compact fluorescent from Osram in a 6500k Daylight colour and G24d-3 cap type. The double turn compact fluorescent lamps are a replacement for incandescent lamps offering a higher efficiency and great energy savings. These types of compact fluorescent is perfect for shallow downlights and are often used in public buildings, offices, shops, supermarkets, hotels, restaurants and around the home. The 2-pin versions have integral starters and should only be used with switch start ballasts. The 26w Dulux D boasts a 1800 lumen output and a 12000 hours average lifetime. General Characteristics Wattage 26w Pins 2 pins Shape Quad Tube – 2 loops Lamp Base G24d-3 Colour 6500k – Daylight Equiv Wattage 150w Incandescent Lifespan 13000 hours Lumens 1800 lumens Length 172mm Diameter 34mm