Basically, the Osram Superstar Classic A75 advanced, in terms of light quality, yield and color flawless LED lamp. A main argument that led to the purchase decision was the possibility of dimming. The 2 LEDs should ensure ordered instead of the classic incandescent lamps in our lampshades over the dining table, for an intimate, soft lighting. We have built the firm touch dimmer. Jung throughout the house and unfortunately the Osram LEDs can not or only very slightly so, with a final dim flickering light. So far we do not have with E27 socket and at least 10 Watt found no matching LEDs that are compatible with our dimmers. For our purposes, unfortunately unusable and thus back to Amazon.