This LED tube Sleeve accessory is easy to install by placing the clear tube and coloured filter over your current 1200mm LED tube and installing it into your fitting (LED tubes sold separately). It will adjust the light output of your LED to a beautiful Light Red colour (Rosco code 182). This is a fantastic way of changing the vibe of your space without expensive fittings being installed. Please be aware that this product is 4ft (1200mm) in length by 32mm in diameter which is suitable for most brands of LED tube. It will not fit T12 type fluorescent tubes and does not come with end caps. Please note that this product comes supplied as 2 pieces a clear plastic tube and a coloured insert.