Description: Mainly used in smart switch, brings some convenience. High sensitivity, fast response. Maintain a high degree of stability and reliability in high temperature, and humidity in harsh environments. PCB Size: 18.5 x 14.8mm/ 0.73 x 0.58inch Specification: Category: Optical Material: Ceramic Physical properties of the material: Conductor Material crystal structure: Single crystal Production process: Integration Output signal: Digital type Package Includes: 5 Piece Photoresistor Module