The Power-On ceiling rose with a 30cm cable and E27 socket is designed for easy installation of light fixtures on ceilings. It comes with a pre-wired 30cm cable that can be connected directly to the mains power supply. The E27 socket allows for easy installation of E27 light bulbs or fixtures. This ceiling rose is perfect for DIY enthusiasts or electricians looking for a quick and convenient solution for installing light fixtures on ceilings.