I show how to replace an existing plastic ceiling rose/pendant for a modern metal light fitting or downlighter. How to fit and wire a ceiling light using wago 222 and wago 773 connectors with a wagobox junction box. I also show how to use a hager J501 light junction box to give viewers a choice of methods. I show how to wire the new light in place and I explain lighting circuits using simple wiring diagrams. I provide some theory and practical knowledge to wire a light with a switch from the consumer unit from scratch. If you want to fit a series of downlighters in one room, please watch my video 'How to install LED downlighters'