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5 x One Channel 5V Relay Module Shield. With power and relay action indication, bright when connect and go off when disconnects. Drive Current at least 4mA. VCC: Power interface ,5V. When there is a signal in signal input, public side and common side will breakover.
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.