Electronic transformer for low-voltage halogen lamps, designed for halogen lamp systems including tube and rail systems, halogen lamp sets, hanging lamps and ceiling lamps. The compact transformer operates from 230 V AC at 50 Hz and provides an 11.6 V DC output rated from 35 to 105 W. It supports dimming with leading-edge and trailing-edge dimmers and features a soft start with steadily rising current after switch-on.