Stept 2:
For the infrared sensor switch, you need to take off the control part from the switch panel by a small tool.
Stept 3:
Loose the four screws and wire the switch with the live line and naught line.
Stept 4:
Tighten the screws and fix the switch on the wall with screws in the package.
Stept 5:
Cover the panel on the switch.
