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Amazon.com: AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger : Automotive
Amazon.com: Space Age SSU-PAM-2, Multi-Voltage Series Relay, 7A, SPDT, Encapsulated Enclosure : Electronics
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Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
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Amazon.com: uxcell JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black 10 Pcs : Industrial & Scientific
AEDIKO 4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level: Amazon.com: Industrial & Scientific
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Amazon.com: CG Solid State Relay SSR-25DD DC to DC Input 3-32VDC To Output 5-240VDC 25A Single Phase Plastic Cover : Industrial & Scientific
Amazon.com: 4 SPDT 10Amp Power Relay Module for Raspberry Pi etc IoT Project, DC12V Version : Electronics
Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific
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Amazon.com: KEYESTUDIO 5V DCAC 4-Channel Relay Hat Shield Module Expansion Board for Raspberry Pi 4/A+/B+/Pi 2 Model B/Pi 3 Model B : Electronics
DC Power Switch Module, 12V 24V 36V 48V 10A Battery Power Source Controller Automatic Switch Emergency Battery Change: Amazon.com: Tools & Home Improvement
Amazon.com: HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V : Industrial & Scientific
Amazon.com: Space Age SSU-PAM-4, Multi-Voltage Series Relay, 10A, SPDT, Encapsulated Enclosure : Industrial & Scientific
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Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific