Producing a true blue colour output this tube sleeve is a simple and effective option for overhauling your space with the power of light. Designed to fit 4 foot or 1200mm LED tubes this product is easy to install. Simply remove your current LED tube slide the cover and true blue coloured insert over then reinstall. The 32mm diameter allows for compatibility with most brands of LED tube (please check before ordering) and to make the ordering / colour matching process easy it has been coloured to match Rosco code 196 (True Blue). Please note that this product does not require end caps and is not suitable for T8 or T12 fluorescent lights.