This sleeve cover has been cut to suit 5 foot long 32mm diameter LED T8 tubes. It will alter the light output to a vibrant Jade Green colour (Rosco code 323). It is a straight forward product to install first you start by removing your existing T8 LED tube(s) slide over the transparent sleeve and the jade green coloured insert and reinstall your LED tube. Ideal for changing the atmosphere of a space for any application without the high cost of expensive colour changing fittings or electrician fees. Please note that this product has been designed for LED T8 tubes only and does not include end caps. It comes as a clear sleeve with a jade coloured insert (both are required for it to function).