Description: The comparator output signal clean, good waveform, driving ability. With adjustable potentiometer to adjust the brightness of the light detection. can detect the brightness and ambient light intensity (compared with the light-sensitive resistors, the direction is good, it can perceive light fixed direction) adjustable sensitivity (blue digital potentiometer adjustment) Operating voltage 3.3V-5V Specification: Material: Plastic Color: As Picture Show Size(LxWxH): Approx. 32x14x5mm/1.26x0.55x0.20inch Package Includes: 1 piece Arduino Light Sensor Note: Pls allow an error of 1-3mm due to the difference of manual measurement