Hi All, I have zero skills in electrical things and am just DIY person. Last year I had new kitchen lights installed - recessed (I think) LED spotlights. Some need bulbs replacing as they've stopped working. I can get the light down out of the ceiling and then there's a blue wire and a brown wire leading to a white plastic looking bit then at the other side of that the brown and blue wires continue to other fittings. It looks like I could separate the wires by pulling them apart at the white bit in the middle - but I've pulled a bit and it's still stuck. I'm not sure if it's supposed to come apart. I switched electric off at the mains so at least I wont electrocute myself, but I really don't know what I'm doing. I have no idea how to separate the light from the wires. Can anyone please advise me.