5V 12V 1 2 4-Channel Relay Module with Optocoupler Relay 4 Channel Relay Board 4 Way Relay Module Shield for Arduino

【COD】All the listed products are supported by cash on delivery;【Shipment & Delivery】All the orders will be shipped out within 24 hours from Manila. Generally, it takes 1-2 days to arrive NCR and 2-5 days to arrive provinces.【Service】Timely warm reply and positive attitude ,quickly solve the problem for every customer【Warranty】We offer 3 months warranty for all of our products. Any quality problem happens during this period can be replaced or refunded.★Features★Module interface:1. DC +: connect to the positive pole of the power supply (the voltage is in accordance with the requirements of the relay)2. DC-: connect to the negative pole of the power supply3. IN: high or low Levcon level control relay snapRelay output:1. NO: the relay is normally open. The relay is suspended before being sucked and shorted with COM after being sucked2. COM: relay common interface3. NC: Relay normally closed interface, relay shorted with COM before snap-in, suspended after snap-inHigh and Low Level trigger selection terminal:1. When wire jumper and LOW are shorted, it is triggered at LOW level;2. When the wire jumper and high are shorted, it is triggered at a high level.★Specifications★ Dissipation Power:5V 12V★Package Include1*Relay ModuleNotes>>>Please choose the prefered color from the available variations and proceed to order based on the main picture(1st picture)...thank you.Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.If you have any doubt , please feel free to contact with us .