I don’t know whether to replace it with the same as above as it’s cheap but my question is it’s wired in so that it plugs into the wall rather than being hardwired. Will this have an affect on my chosen light?
Either way, if it doesn’t come with a plug (intended to be hard wired) you can just stick a plug on it. I actually replaced a single socket with flush-fitted, illumintaed switch which had a hole in the base for a wire and then ran the cable along the skirting board and then through the wall. Much neater than having it wired in to a plug, but it means you can still switch it off.
Also, depends how illuminated you want your garden / drive. Mine only has a 150w halogen, which is plenty for me to sit outside etc, not so good if you want to work on your bike or something in the dark.