Spare for Alen halogen transformer

After the built-in transformer of a halogen lamp shortly after the end of warranty stopped its function, I ordered this transformer. (Is not really a transformer but a switching power supply, ie an electronic circuit reduces the voltage). The switching frequency is so high that one does not hear a whistle, even under load.
Although the installation form did not fit, but there was plenty of room and the transformer is not large, the installation was not a problem.
Switched - works to this day.
Important: you must not fall below a certain minimum load, otherwise the circuit will not start. Possibly Insert one or two normal halogen lamps, if you otherwise has only LED light sources.