we are having trouble with our led lights in our showroom
we replaced / re soldered new led lights into position but they don't seem to last they work for about 3 weeks then they start flashing and then burn out ... we are attaching the new led lights straight to the heat sink.. do we need some sort of insulation between them..????
This behaviour typically indicates that the LEDs are not being adequately cooled. You will find more details about cooling LEDs here:
Be sure that they are mounted to a suitable heatsink and that the double sided thermal tape is applied as demonstrated in this video: