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1PCS 5V Eight 8 Channel Relay Module With Optocoupler Arduino PIC AVR DSP ARM. This relay module is 5V active low. Channel: 8 channel. Red working status indicator lights are conducive to the safe use.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.