The Seeed Studio Light Sensor (P) V1.1 is a low-cost, plug & play light sensor module for detecting ambient light levels. It features a photodiode, operational amplifier, and comparator in a three-pin, DIP size package, making it ideal for applications such as light detection, automatic street light control, and dimming of LEDs based on light intensity. The output voltage of the module is linearly proportional to the incident light intensity, making it easy to interface with most microcontrollers or analog applications. It has a response range of 0.5 -100lux and a very small form factor measuring only 17.0 x 7.0 mm. The module is powered by a 5V input supply, and has a very low power consumption of 2.5mA max. It is both RoHS and CE certified, enabling its use in a variety of industrial applications.