Installation method: opening hole 10mm, and adjust knob downward. N: blue (connecting zero line); L: brown (connecting live line); sensor switch output line: red; the blue wire and brown wire connect input power, and the blue wire and red wire connect load (lamps). Simple wired based motion sensor not wifi one.
Can be used for incandescent lamps, energy-saving lamps, LED lamps, fluorescent lamps, etc. Easy to install.