1.Using sensitive photosensitive resistance sensor.

2.The comparator output signal is clean, good waveform, driving ability, more than 15mA.

3.With adjustable potentiometer to adjust the brightness of the light detection.

4.The working voltage 3.3V-5V.

5.The output form: DO digital switching outputs (0 and 1) and AO analog voltage output.

6.A fixed bolt holes for easy installation.

7.PCB Size: 3.2cm x 1.4cm.

8.Using a wide voltage LM393 comparator.