Photo 1 of HiLetgo 12V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger

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Photo 1 of HiLetgo 12V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level TriggerPhoto 2 of HiLetgo 12V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger