1. Check Your Existing Downlights
Before you consider whether you can replace the downlights yourself or not, you need to inspect the current installation.
If the existing downlight fitting only needs to have the bulb removed and replaced, you’re in luck, this is the most straightforward of projects, and you can handle this alone. Be sure to look at the number on the bulb so you’re replacing like for like.
If the entire fixture needs to be replaced, you’re better off contacting a professional.