color 1 (1156 single contact) diagonal white，
color 2 (1157 pairs of contacts) the level of foot white，
color 3 (1156 single contact) diagonal yellow，
color 4 (1157 pairs of contacts) the level of foot red，
color 5 (1157 pairs of contacts) The level of foot white Strobe，
color 6 (1157 pairs of contacts) the level of foot red strobe