I'm trying to replace the old lightbulb in the bathroom with a nice new fitting with halogen spotlights. The new fitting has a brown live wire, a blue neutral wire and a green and yellow earth wire.
When I open up the ceiling rose in the old light, there's a small plastic wiring junction. I have drawn a diagram of this so hopefully someone might recognise what's going on and how I wire the new light fitting to this.
So currently there are two black wires going into the plastic wiring junction from the ceiling, and coming out of the wiring junction in the corresponding positions are two brown wires, which go to the bulb. There are two red wires going into the wiring junction at the same hole, but they don't go to the bulb. There's two unsheathed wires going into the junction at the same hole, but they don't carry on down to the bulb. I assume they're earth wires.
I'm just not sure how I connect the new fitting with the regular blue, brown and green/yellow wires to this, and its not something I wanted to experiment with so I'd really appreciate some help.
Thanks in advance