The W38LT1890 from Acopian Technical Company is a DC to DC Converter with Input Voltage 110 to 350 V, Output Voltage 1 38 V, Output Current 1 13.2 to 18.9 A, Output Power 720 W, Isolation Voltage 0.3 kV. Tags: DIN Rail Mount, Buck/Step down. More details for W38LT1890 can be seen below.