With Pure oxygen-free copper wire + high quality iron core. Optimized sound density design,also with Oxygen-free copper shield. Primary:0-115V 0-115V 4 lines (it can connect as 115V or 230V input) Secondary: (have following kinds for choose) 1: 0-AC6V 5A), 2 lines 2: 0-AC9V (3.33), 2 lines 3: AC12V (2.5A), 2 lines 4:0-AC15V (2A), 2 lines 5: 0-AC18V (1.66A), 2 lines 6:0-AC20V (1.5A), 2 lines 7:0-AC24V (1.25A), 2 lines Transformer Power: 30VA Size:80*70*40mm (W*L*H) We also can accept custom-make other voltage and power. if you need. Please contact us. thanks

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