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3 Pcs DC 12V 1 Channel Relay Module High or Low Level Trigger for Electronics

DC 12V 4 Channel Relay Module High or Low Level Trigger for Electronics

8 Pcs DC 12V 1 Channel Relay Module Board Shield 10A High/Low Level Trigger

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3-32V DC 1-Channel SSR Solid State Relay High-low Trigger 5A 5v 12v For Arduino

Solid State Relay Module 5V 1/2/4/8 Channel SSR Board for Arduino Raspberry Pi