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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
ANMBEST Relay Module with Optocoupler High/Low Level Trigger for Arduino (3, 3V Relay 1 Channel): Amazon.com: Industrial & Scientific
Amazon.com: uxcell 3 Pin Y1212395 0.02-20A 12V DC Universal Car Vehicle Motor Blinker Light Flasher Fuse Relay Switch Power : Automotive
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MYSWEETY 3PCS SSR-40DA Solid State Relay Single Phase Semi-Conductor Relay Input 3-32V DC Output 24-380V AC: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 2pcs 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger : Industrial & Scientific
Amazon.com: 10 Pack 30/40 AMP Waterproof 5-Pin 12V Relay Switch （SPDT）for 12 Volt Automotive Marine Relays for Boats Auto Fan Cars : Automotive
Song Chuan Coil"Sealed" SPST 50A 12VDC Relay (Pack of 3): Amazon.com: Industrial & Scientific
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