The SKMW40F-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 3333 mA, Output Power 40 W, Operating Temperature -40 to 80 Degree C. Tags: Through Hole, Buck-Boost. More details for SKMW40F-12 can be seen below.