Input Voltage: 0-AC115V-AC230V??output voltage: AC 15V+15V(0.5A 4 lines ) and AC 9V+9V(0.8A 4 lines)??Output Power:30W??Size:79×68×39mm??Weight: about 0.6kg??(If you need the transformers in other specifications.just email me Thanks)??Features:??Japanese Nippon steel coiled silicon steel sheet??Oxygen-free copper enamel wire??With shielding wire output??Stable performance