Changing your existing 5 foot LED T8 tubes output to a different colour output is a great solution to otherwise time consuming and expensive projects to replace lighting systems with RGB options. This LED T8 tube sleeve will allow your existing light to produce a Primary Green coloured light. To install this product start by taking out your existing LED T8 tube slide the coloured insert and clear sleeve protector over it then re-install the LED tube. Once installed the light colour will be a primary green colour which is matched to the Rosco colour code of 139. The 32mm diameter is suitable for most makes of LED tube however please check that yours are the correct size to fit this product. Please note that this product does not come with end caps (not required) and comes as two required components (transparent sleeve with primary green coloured insert).