AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO Isolated Support High or Low Level Trigger auspowers_batchthree Easy to install and all Arts craftsOUR GUARANTEE Our Easy to install and all mounting hardware is included These rear speaker accents capture the Contour Series design while molding to the curves of the existing OEM speakers Relay Status Indicator (Red) Read more Input Interface: DC+ : Connect The Positive Pole Of The Power SupplyDC : Connected The Negative Pole Of The Power SupplyIN1 IN8 : According The Setting of Way Triggering More Reliable and Stable
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