I have a DAB radio that works well but as soon as I turn on my kitchen lights, there is no sound. It comes back as soon as I turn the lights back on. I have 12 LED 12 ceiling lights powered by 6 transformers. Originally I had 12 50w halogen lights but changed these to LEDs to save on power costs. I did not change the transformers. I suspect that it is the transformers causing signal interruption. Are there transformers out there that dont have this effect on DABs? I have an external digital aerial and signal amplifier (which does not appear to make any difference). Any assistance from clever guys that know how to solve this would be most appreciated.