This fantastic coloured LED T8 tube sleeve will change your current LED tubes to a No Color Blue output (Rosco colour code 144). It fits 5 foot (1500mm) LED T8 tubes and is 32mm in diameter making it suitable for most currently available brands of LED T8. This straight forward and easy to install product has a huge impact on the feel to a space for gatherings parties or events. To install the sleeve you must remove your existing LED T8 tube and then slide the transparent cover and No color blue insert over the tube then put your LED tube back into its fitting. Please be aware that this product does not require end caps and is not suitable for T8 or T12 fluorescent tubes.