Photo 1 of HiLetgo 5V 8 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger

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Photo 1 of HiLetgo 5V 8 Channel Relay Module with OPTO-Isolated Support High and Low Level TriggerPhoto 2 of HiLetgo 5V 8 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger