This vivid 1800mm (6ft) Yellow coloured sleeve cover has been made to change your space by altering your existing LED T8 tubes light output. This simple to install product is a great option for changing a space temporarily or permanently for many different applications. To install this product begin by removing your 6 foot LED tube then have the retention tube and coloured insert slid over the top then reinstall the LED tube. It is suitable for LED T8 tubes that are 32mm in diameter or slightly less. Please note that this product comes with two components one part is a clear sleeve and the other is a yellow coloured film insert and it requires both to function.