The mounting frames are simple but egelant. The clips hold in a fixed 10mm Rigippsdecke very. Unfortunately, the description is something missvrständlich ... is offered "Downlight Downlight mounting frame Recessed Spotlights Recessed downlight Mounting Ring" from which one could see that it is just about bare frame without the trimmings. In the product description but is "versions MR16 GU10 GU5.3 Ceramic" listed are not among them. Also, I've found that LED bulbs do not fit quite as well (in my case from a Swedish furniture store). The clamping ring must be arg into hanky. With a halogen Leuchttel but everything fits perfectly.