Dimmable Osram LED (3 x 6 W) flicker at max. and min. Brightness, between erratic Hellingkeitsschwankungen, by inserting a conventional bulb all gone - apparently not compatible with well-known LED bulbs. Update: I've added the dimmer a chance and 3 dimmable Osram LED lamps á 6 W 3 to 5.5-dimmable LED lamps of I-Glow (Norma) á 5.5 W replaced - and lo and behold: Not flickers more! Minimum position, however not really very dark. Nevertheless, now a star more. Obviously all the LED Dimmer with all LED bulbs are not compatible. If only one expensive thing when you have to try the first. Now what do I do with the expensive Osram bulbs ...?