The RDDW20F-12 from Mean Well is a DC to DC Converter with Input Voltage 9 to 36 V, Output Voltage 1 12 V, Output Current 1 0 to 835 mA, Output Power 20000 mW, Output Voltage 2 -12 V. Tags: Through Hole, Buck-Boost. More details for RDDW20F-12 can be seen below.