This is a Sylvania F30W/840 - 3 Foot 30w T8 Triphosphor fluorescent tube in colour 840 cool white.The colour 840 can also be referenced as /640 /20 /84 /184 /133. There is a wide range of possible application areas for fluorescent tubes. From retail environments, offices, restaurants, hotels, warehouses and hospitals as well as numerous applications for household use. These lamps have an average life of 20,000 hours. With Sylvania fluorescent tubes we suggest you replace the tubes like for like with the wattage of your previous tube as the wattage determines the length of the tube. Sylvania part code: 0001080