Osram Lumilux T8 fluorescent tubes are regular tubes often used in offices, warehouses or schools. The G13 fitting and diameter of 26 mm are characteristic and recognizable for everybody. The Osram Lumilux T8 comes in many different sizes and colors. You can use your current fluorescent tube as an indication for your new one. Choose the size and wattage, which are related, and the color of your current tube in the filters on the right. This way, you will keep the same light effect as your current light source.