Producing a vibrant bright yellow colour light this sleeve accessory / add on has been carefully designed to the Rosco colour code of 100. It has been cut to 4 foot or 1200mm in length and is suitable for a 32mm diameter LED tube (most brands are designed to this spec please check that yours is compatible). To install this product first remove your current LED T8 tube slide the cover and insert over then reinstall the LED light tube. This type of product fills a much needed gap in the market as coloured LED tube lights are great for events parties and for creating a cool atmosphere in your space. Please note that this product does not have end caps and comes as 2 separate components (clear sleeve and a coloured insert).