Really bummed off about LED lights. Bought a batch recently, and they all flicker. Had a similar set not too long ago which were good - though in fairness they may have been mixed in with other lights. I suspect that the problem is that the wiring includes a transformer for halogen lights, which are effectively no longer obtainable.
I have seen this problem twice recently. In one case the light ensemble would be a pain to rejig - very much a bespoke unit. If my suspicion about the transformer is correct, then to get that to work with the new lights the unit [heavy and large suspended from beams in the ceiling] would really have to be lowered to fit a different transformer, then the whole thing put back up again with new LED lights. In the other case, which is a complete light fitting with three lights, probably containing its own transformer, but wired directly into the 230/240V lighting cirguit in the ceiling, my hunch is that the light unit itself needs to be discarded and replaced with something similar.
Maybe this is the price of progress, but the LED lights bought from Amazon were sold as "halogen replacements" - MR16 - clearly not quite. Mixing these in with similar MR16 LEDs - but with a yellower light in one case reduces/eliminates the flicker, but then the light is not quite so good. Not sure about the integrated light fitting with just three lights.
Could probably get money back from Amazon - but it's a pain anyway. We just want the lights to work!