12v 150w SMPS electronic transformer for halogen lamps. On the market are very similar to halogen driver circuit BJT types of transistors (mje13005) used cardiac triggered if the transformers used et34 220k potentiometer circuit can control the brightness of... Electronics Projects, SMPS Electronic Transformer for Halogen Lamps 12V 150W "power electronic projects, smps circuits, smps projects, smps schematic, " Date 2019/08/02