I bought a step down step down electronic transformer Horoz HL 372 http://www.horozelektrik.com/en/components/transformers/hl-372.
220/240VAC to 12VAC
it doesn't seem to function properly. If no bulb or load is connected to the output the out voltage is pretty much zero. If e.g. I connect a 12v 5w halogen bulb the voltage goes up by a tiny bit, still under 1 volt. With a 12V 35W bulb connected the out V goes up to ca. 2/2.5 volts and the bulbs lights up but very dimly. Does this mean that the transformer is defective, if so what could be the cause? For me that's a weird defect, it either works or it doesn't.
thanks for your input
p.s. the only thing that the instructions say is that the distance between the output and the light bulb has to be greater than 200mm. I connected the bulb with a longer cable, ca. 300mm.