5X DC 12V Single Channel Relay Module Universal Relay Receiver + 2 6686

DC 6V 9V 12V 24V Flip-Flop Latch Relay Module 1 Channel Bistable Self-locking Sw

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DC 12V Relay Module 4 Channel Relay Board Shield with Optocoupler Isolation

1/2/4/8 Arduino Pi Channel Relay Board Module Selectable High Low 5V 12V 24V

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433 Mhz Universal Gate Remote Control Switch DC 12V 10A Relay Receiver Module

1 channel 12V Relay Module, Opto-coupler isolated, for Arduino and MCU projects.