My suggestion would be to check the spec of the LED strip and get a suitable driver/PSU for it - e.g. something from this selection https://ledhut.co.uk/collections/led-drivers-transformers
You will notice that all of these take a hard-wired input or have a pigtail already fitted - so easy to connect to your existing ceiling rose or pendant cable. Just a matter of picking the correct voltage, and a suitable power rating (at least that of the LED strip(s), but not too much more as some drivers have a minimum load.
Is there a control unit of some sort ? The photo shows a remote control - I'd expect there to be a control box of some sort to go between the power supply (USB cable in this case) and the LED strip.
Also, is this LED strip that you already have, or something you are planning to buy ? It's just that you may be best choosing a different product - such as choosing 12V instead of 5V which would give you a better choice of driver/PSU.