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Circuit accessories relay module 1 2 4 8 channel 12v relay module board shield with optocoupler support high and low level trigger for arduino | Fruugo NO
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Amazon.com: TRUE MODS 6 Pack Bosch Style 5-Pin 12V Relay Kit [Interlocking Harness Socket Holder] [14 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Relays for Auto Fan Cars : Automotive
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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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