British home wiring. The incredibly simple lighting circuits.

Very early on in the British electrical industry it was decided to standardise and simplify everything as much as possible for uniformity and safety.
The "ceiling rose" is a clever little junction box that we probably take for granted here, but it makes the lighting wiring very straightforward and versatile. Even if it's removed and replaced with a junction box above the ceiling it still results in a standard wiring arrangement to work with.
It's not just a junction box though. It also acts as a decorative and accessible base for a fixed or hanging pendant lampholder and can accommodate quite heavy light fittings like tiffany glass shades. The screw-on cover can also be painted to match the room decor if desired.
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