This LED tube Sleeve attachment is easy to install by sliding the clear tube and filter over your existing LED tube and re-installing it into your fitting (LED tube not included). It will alter the light output of your LED to a Light Red colour (official colour code 182). This is a great way of changing the vibe of your space without expensive fittings being installed. Please be aware that this product is 2ft (600mm) in length by 32mm in diameter. As a result it will not fit T12 type fluorescent tubes and does not come with end caps. It is also important to note that this product comes as 2 components a clear plastic tube and a coloured insert.