Made specifically to fit a 5 foot (1500mm) LED T8 tubes this vibrant Sky Blue (Rosco Code 068) coloured sleeve is the ideal choice for altering the light colour of your existing LED tubes. Simply uninstall your current LED T8 light slide the transparent sleeve sky blue insert over it and then reinstall the tube. Once this has been completed your light will then produce a blue colour light ideal for setting the scene for all kinds of events and applications. Please be aware that this sleeve accessory has been designed to fit with most brands of LED tube (must be 32mm in diameter) please check that your tube is compatible. It is also important to note that this product does not require end caps.