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Product Name: 4 pcs for 5V One 1 channel relay module Board Shield For PIC AVR DSP ARM Arduino MCU

1, the new 5V relay module
2, can be used as a microcontroller development board module that can be used to control home appliances
3,5V-12V control signals are TTL
4, the control of DC or AC signal, you can control 220V AC load.
5, there is a normally open and one normally closed contact
6, a power indicator light
7, increased transistor drive relay coils, control foot high impedance.

Shipping list: 5V One 1 channel relay module   x4