We have a 2.3m LED pendant light bar over an island bench in our kitchen. It’s six years old and is not heavily used - average about an hour once or twice a week - under 1,000 hours in total.

A week or so ago it just went off and wouldn’t respond to the wall switch. Then it suddenly came on the next morning. It did the same thing last night and this morning. It’s currently working but unreliable and clearly faulty.

I would be grateful for comment and advice on diagnosing and fixing it. I’m hoping the LEDs themselves are OK and there’s a problem with the driver. Is that likely? I have googled without success for info on all this. 

I’m guessing that the driver is likely to be the ceiling - accessible via the circular ceiling boss visible on RH side of the photo. i.e. in the ceiling rather than inside the square casing of the light itself?

If it’s the driver, am I likely to be able to buy a replacement? Not necessarily an original part - but one with the same specs read from the case of the original.

I haven’t got the ladder out and investigated yet - was hoping to get some comments here first. This may be simple or obvious to some but it's not something I'm familiar with.

Thanks.