Hi Bruce,
Gather this Panasonic Led supply works more on current than voltage - Seems sensible but then it doesn't realise when several Leds have gone S/C, and only notices when one has burned out the strip print where the supply voltage goes wild.
Thought this time to try remove/replace Leds without removing the strips as it's such a fag. Taking them off with hot air is no problem, but thought try fashion a soldering iron flat copper bit (Flatten a bit of water pipe) Braze to a short round bit then introduce under the strip with Kaptan tape on the underside to provide some insulation from the housing.
Downside might be that you can't remove the bit 'till the solder has set, but with LMP it might not be a problem - Will see - Chris.
As to your 'Words to the wise' - There are a few firms giving a five years' guarantee in the UK. Wife bought a 'One's Pad' that failed, and with such an assurance, and has now bought a 'One's Pad Mini' as the firm offering the guarantee, don't actually mend 'em, but shove 'em out to folks who don't mend 'em either.
Had a comeuppance trying sort Apple I Pods, where after getting a few duff ones from the Flea, found couldn't sort as the flexies broke no matter how careful I was. Then if sorted, there was the wheel that didn't work, even with half a credit card stuffed underneath, as suggested.
Guess slim modern stuff can be troublesome