Dc/dc Converter Regulator 48V to 12V 10A 120W Input Voltage: 48V nominal Input range: 40V to 60V Input Current: 10A (max) No-load input current: 10mA Output Voltage: DC 12V 2% Output Current: 10A Ripple wave: 50Mv Starting delay time:  2S Maximum Efficiency: 90%