12V RELAY MODULE (USING TRANSISTOR)

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The module complies with international safety standards, control area load area isolation groove;
Genuine relay Songle;
With the power and relay action instructions, pull bright disconnect does not shine;
When a signal in the signal input terminal, the common terminal and the normally start conduction;
Microcontroller development board can be used as a module that can be used as a home appliance control;
The control of the DC or AC signal, can control 220V AC load;
There is a normally open and a normally closed contact;
Blue KF301 terminals to the line of control is more convenient.
Description of the high and low trigger:
High level trigger is a trigger voltage between the signal input and ground can be understood as a way of the signal input terminal and VCC cathode short trigger;
Low trigger means is the voltage between the signal input terminal and the ground for the OV trigger mode can be understood as a way of the signal input terminal and GND negative short trigger