There is a wide range of possible application areas for high lumen output fluorescent tubes. From stores, offices, restaurants, hotels to stadiums and sports halls, warehouses, hospitals, roads and tunnel illumination as well as numerous applications for private use. These are the following additional characteristics: Up to 20 % more economical than LUMILUX T8 Up to 50 % smaller volume than comparable T8 lamps When replacing the Osram FQ HO 54W 840 G5 Lumilux make sure you select the corresponding length / wattage as you have now. These are in fact related to each other. A lamp with a different length or wattage will unfortunately not work. Features Average Lifetime: 24000 hours Power output (watts): 54 Socket Type:G5 Colour Code: 840 Colour temperature: 4000 Kelvin (Neutral White) Light Output: (Lumen) 4450 Light Colour: 4000K (Neutral White) Dimmable: Yes, with dimmable ballast only Beam Angle: 360 degree How to choose the right tube? T5 tubes are available in a range of lengths and wattages, therefore it is important to know exactly what you are looking for. The length also directly correlates with the wattage so you must keep this the same; otherwise it will not fit into your socket or fixture. At Any-Lamp we sell a range of lengths from 29cm - 150cm. Please note that the lengths vary depending on the type of tube and brands. As these tubes also require the use of a ballast; if you change the wattage then this will also not work. For High Output and High Energy tubes -{{block type=\"Anylamp_Custom/catalog_product_link\" product=\"9333\"}} For Circular Tubes -{{block type=\"Anylamp_Custom/catalog_product_link\" product=\"7261\"}} For most other T5 tubes - {{block type=\"Anylamp_Custom/catalog_product_link\" product=\"7252\"}} The colour temperature should also be considered when choosing your T5 tube. If you are happy with your previous colour temperature then we advise you to buy the same replacement. The T5 tubes are available in 2700K, 300K, 4000K and 6500K. For a warmer white light you should choose 2700K or 3000K. For a colder white light choose 4000K or 6500K.