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Relay module:this module is mainly used for light detection, brightness detection and control,photoresistor modules
Photoresistor relay modules:with the relay, it can do various brightness detection , you can control street lights and more,4-pins photoresistor modules
Modules for photoresistor:the module has good functions in solving the critical phenomenon, and improved the relay control range,light detection sensor
Light detection sensor modules:the do output terminal can directly drive the relay module and forming a light-controlled ,photoresistor relay sensor modules
Light detection modules:fixed bolt holes for easy installation, save your time and effort in a large extent,light control modules