1Adding human body intelligent sensing function design, easy to install. 2With 8-bit wave switch, sensitivity can be set. Select work mode, you can set night work or all day induction. 3After the second sensing, when it receives the second sensing signal, the working delay will be the second remaining. 4Re-return to the initial state timing (set time) based on the delay. 5The sensor head can choose the angle at will. The output voltage is equal to the input voltage.