The PSK1220-9BG from Bel Fuse is a DC to DC Converter with Input Voltage 15 to 80 V, Output Voltage 1 12 V, Output Current 1 20000 mA, Output Power 240000 mW, Operating Temperature -40 to 71 Degree C. Tags: Chassis Mount, Buck/Step down. More details for PSK1220-9BG can be seen below.