It is a relay card whose contact is triggered by 12v. Unlike normal relay modules, it receives the signal from the LDR sensor connected to it instead of receiving it from Arduino etc. cards. Sensitivity can be adjusted with the trimpot on the module.
30V to 10A Since it can switch voltages up to DC and 220V up to 10A, this product can be used in many projects. Thanks to the NC, NO and COM terminals on it, both short-circuiting when the relay is triggered or turning on the energy when the relay is triggered can be done with this module.
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