MINI LED DISPLAY VOLTMETER BACKLIT GREEN 30 VOLT (Miscellaneous)
I bought the pack of 3 displays, a display in 2 son works and the other 2 have 3 son, one red, one yellow, one black ... if I plug red and black, 2 digits are illuminated with 2 zero , yellow and black nothing, no leaflet nonconforming product that I