Huayao 2pcs 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32…

Amazon.com Price: $11.99 (as of 25/11/2020 05:08 PST- Details)

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This relay module is 5V active low. Relay output maximum contact is AC250V 10A and DC30V 10A.
Standard interface can be directly connected with microcontrollers.

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