Mar 01, 2018 · Each character on the board is organized with different numbers of lights’ series, respectively, 41 lights’ series, 50 lights’ series, 40 lights’ series, 50 lights’ series. There are a total of 181 lamp beads, and the working voltage of each character was 123 V, 150 V, 120 V, and 150 V respectively. Every character had two power