new bathroom light with pull cord?

If you have only two cables the solution is relatively easy for you...

At the ceiling - Join the two red wires together and to nothing else - of the two remaining black wires connect each of them one each side to the lamp - one of the black wires will be the neutral return and the other switched live - to turn the light on and off.

You will need four connections at the ceiling
Permanent live
Switched Live
Neutral
Earth

You may need to use a terminal block to join the two red wires together.

"Ring Main" usually refers to household sockets where the supply cables make a complete ring from the consumer unit. House lighting is usually on a loop - from one light to another.

I am not qualified to give you this advice - so take care...

Peccavi
March 2011

You are on a ringmain, the 2 sets of wires are 1 from the ring main and 2 to the light bulb. Google ring main light bulb diagram to see how it's done

Bob
March 2011