1,220V 12V halogen transformer 2,input power range: 20w-60w 3,input voltage: 110v or 220v-240v 4,input frequency: ... 50Hz-60Hz 220V 12V halogen lamp transformerinput power ... frequency: 50Hz-60Hz outout voltage: 12voutput frequency: 2klamp type: halogen 10w-60w Introduction of our company: 1, Years of established: in 20002 ...