Kessil randomly shutting down

[Dearth]

I’ve searched the net extensively about this but aside from cleaning my lights I haven’t found a solution

I bought 3 used Kessil a360 tuna blue lights just over 18 months ago. All was good until about three weeks ago when one of my lights just randomly started to shut down unplugging the power source and plugging it back in seems to work but it lasts anywhere from a few hours to a couple of days before shutting down again.

One of my three lights failed a few months after getting it (power source fried)

I pull the lights apart every three months and clean them with compressed air (best practise from several sources)

When the light shuts off the body is not hot the fan is working and the cooling fins are clear generally restarts after pulling and plugging power source back in

So my question for those who have Kessil lights is do you have any solutions other than what I have been doing already?