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Amazon.com: HiLetgo 2pcs AC-DC 220V to 5V Isolated Switching Power Supply Power Supply Module Board : Electronics
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Amazon.com: SunFounder 2 Channel DC 5V Relay Module with Optocoupler Low Level Trigger Expansion Board Compatible with Arduino R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi : Electronics
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Amazon.com: 2Pcs AC DC Converter Module Universal 110V 120V 220V 230V to DC 5V 12V Isolated Switching Power Supply Board (DC 5V 700mA Version) : Electronics
YWBL-WH Voltage Protector Relay 2P/32A 230V AC Automatic Reconnect Voltage Protector Digital Voltage Relay Under Voltage Relay, Surge Protector - - Amazon.com
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Amazon.com: ARCELI 5PCS KY-019 5V One Channel Relay Module Board Shield for PIC AVR DSP ARM for Relay : Electronics
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Amazon.com: 2Pcs AC DC Converter Module Universal 110V 120V 220V 230V to DC 5V 12V Isolated Switching Power Supply Board (DC 5V 2A Version) : Electronics
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Electronics-Salon DIN Rail Mount 8 SPDT Power Relay Interface Module. (Operating Voltage: DC 12V): Amazon.com: Industrial & Scientific
Electronics-Salon DIN Rail Mount 4 SPDT 10Amp Power Relay Interface Module, DC 5V Version.: Amazon.com: Industrial & Scientific
Amazon.com: Tolako 5v Relay Module 5V Indicator Light LED 1 Channel Relay Module for Arduino ARM PIC AVR MCU : Tools & Home Improvement
