No buzzing, is beautifully light and small and easy to install. Programming worked as described immediately. When I use the remote control ITT 1500th The setting of the minimum brightness is functioning properly. That even with the weakest level speed regulation is bounded below, was to be expected. Have the Dimmer not coupled to the light switch but housed in the lamp. Although this has the disadvantage that the connected lamp can not be operated directly on the light switch, but only remotely and if the light switch is set to "On". But the other hand, has the advantage that when the switch is "off" position of the light switch dimmer no standby current draws. For permanent power supply in upstream connection of dimmer nevertheless consumes approximately 1 W. otherwise the reminder function on the zuzletzt set brightness remains with the light switch even after disconnection of the current, if the light was previously switched off with the remote control.