This sleeve accessory has been designed to fit 3 foot (900mm) long 32mm diameter LED tubes. It will alter the light output to a beautiful Golden Amber colour which has a Rosco colour code of 134. It is simple to install you only need to remove your LED T8 tube slide over the sleeve with coloured insert and then reinstall the tube. Ideal for changing the feel of a space without the high cost of expensive colour changing fittings and electrician fees. Please be aware that this product is suitable for LED tubes only and does not include end caps. It comes as a clear sleeve with a golden amber coloured insert.