Failed Electronic Halogen Lamp Transformer - Always check simple first
Failed electronic halogen lamp transformer: Broken quality PCB lead-free ROHS solder joint at the input terminal. Failed completely after some time. Transformers sold with wire pigtails already preinstalled, so likely damaged already at the factory.
Only to be repaired by qualified personnel, no gefingerpoken, nicht für gewerken bei dummkopfen. Rubbernecken sightseeren das video only!