Light fitting installed by our handyman in Clapton.
Trip the main (red) fuse, remove the old light fitting.
Wire the new light fitting following the wiring colour scheme (Brown goes with Brown ) this is the Live wire once you switch the lights on.
Blue goes with blue, this wire colour is neutral usually unless it is got a brown sleeve. Always test the wires.
Yellow and green go to yellow and green, this is the earthing.
Put the main fuse back on.