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Amazon.com: 2 Channel 5V 10A DC Relay Module : Electronics
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2 x Relay Board Single 10A / 250V for microcontroller 5V Logic Level : Amazon.ca: Industrial & Scientific
Amazon.com: Yizhet 5V 2 Channel-Relay DC 5V 230V Relay Shield Module Control Board with Optocoupler for Raspberry Pi PIC AVR MCU DSP ARM TTL Logic (1 PCS) : Industrial & Scientific
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