This SP M Lavender (Rosco colour code 343) coloured LED tube sleeve accessory has been carefully designed to suit standard 32mm diameter LED tubes. It has a length of 4 foot (1200mm) and is an easy solution for changing the colour of your light for gatherings parties and events. To install this product begin by removing your current T8 LED tube and then slide over the clear sleeve (with coloured insert) and then reinstall your LED T8 tube. Once installed it will allow your LED to output a coloured light that is great for all kinds of applications Please be aware that this product does not come with end caps (not required) and is not suitable for any type of fluorescent tubes.