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Shipping from EU warehouse
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Warehouse : Italy
Feature:1 channel relay module, with photoelectric isolationHigh or Low level changeable(by a jumper setting trigger)The module uses genuine quality relayWith power and relay acof earth wireGND: GroundNotice:High Level Mode: the jumper is set between com and gnd (original).Low Level Mode: take down the jumper, connect VCC to VCC, GND to Control Terminal, IN to 5V, COM to GND.Package included:30 x 12V 1 channel relay module