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NOT short M Pads on PCB(0:Switch OFF;1 Switch ON) It can drive 3V/5V/12V relay/LED and so on. very important to us. We will be happy to resolve. If you don't receive. All products are quality checked.
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.