"Andy R" wrote
| I was also thinking of doing this but I want rewireable/cartridge
| fuses for the lighting circuits instead MCB/RCBO. Does anyone
| know of a CU with this option?

Why anyone would want rewireable fuses is beyond me[1] and remember that if
you do use them the cables must be derated.

Owain

[1] If you have a problem with blown bulbs tripping MCB then get decent
light fittings and not some electrolier that thinks it's still the 1930s