The B2405XT- W2R2 from MORNSUN is a DC to DC Converter with Input Voltage 21.6 to 26.4 V, Output Voltage 1 5 V, Output Current 1 5 to 50 mA, Output Power 250 mW, Operating Temperature -40 to 105 Degree C. Tags: Through Hole, Buck/Step down. More details for B2405XT- W2R2 can be seen below.