The LEDs were delivered quickly and were neatly packed.
After exchanging 3 of 6 standard lights up the LEDs dimming was not a problem. But when all 6 halogen bulbs were replaced with LEDs, went only 1 level .... with dimming was nothing. Possibly It is indeed at the counter, who knows.
Anyway, we now operate the LEDs in combination with standard halogen lamps in both the dimmable as well as a non-dimmable ceiling light and so could still achieve the goal of reducing the total wattage = SAVING.
Therefore, I would not buy the LEDs even when required.