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Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Tools & Home Improvement
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Excelity 2 Channel DC 5V Relay Module for Arduino Raspberry Pi DSP AVR PIC ARM - - Amazon.com
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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Amazon.com: Lysignal 1 Channel 5V Relay Module Relay Board with Indicator Light LED for SCM Household Appliance Control : Automotive
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