1, switch terminal marked L1, L2, L3, L4 hole is the public **** end, connecting the firewire, terminal marked L11, L12 holes connected to the lamp head line (two holes randomly connected to a).
2, labeled L21, L22 holes connected to the 2 # lamp control line (two holes at random)
3, labeled L31, L32 holes connected to the 3 # lamp control line (two holes at random).
4, the hole labeled L41, L42 connects to the control wire of 4# lights. (The two holes are connected to one at random).