I have lights going up my stairs ( on the side )and this morning they have stopped working any suggestions??? Can the bulbs be replaced or should I replace the fuse
Sometimes when a bulb (lamp) blows it will trip the breaker, try replacing the bulb first, reset the breaker if it is tripped, if it trips right away or the bulb fails to light get a sparky in to check things out.
The likelyhood is that these are a built in lamp and are probably non replaceable. You’ll need to locate the driver if they have all failed and replace that more than likely.