Step1: Disconnect main power supply before starting installation to prevent electric shock.
Step2: Remove panel cover and access existing switch wiring carefully area.
Step3: Note wiring configuration and carefully detach old rocker switch terminals.
Step4: Connect wires to new switch terminals as per wiring diagram ensuring secure fit.
Step5: Mount switch into panel and restore cover, then test operation thoroughly.
Step6: Verify all connections are tight and ensure power is off before final testing.