-isolator Control Our 3v 1 channel relay module supports photocoupler isolation control, has the output signal indicator,the signal input port can connect SCM IO port, high level signal drive. Strong driving ability, stable performance. Dual Power Option Design Our 3V/3.3V power relay module use double power selection design that has strong anti-interference ability and high photoelectric isolation protection reliability. Diode Continuous Flow Protection Relay module with diode continuous flow protection, response time is less than 20 milliseconds, of relay can be absorbed 100,000 times continuously. 30VDC 250VAC Load Equiped with high-current relay, AC250V 10A ; DC30V 10A, each relay has normally open and normally closed . Can be by jumper relay and TTL or ground. & More Solid The external connection adopts rotary compression terminal to make the connection stronger. Color: black + green + blue Material: PCB Package: 6pcs Voltage: DC 3v/3.3v Size: 2.79 inch X 0.63 inch X 0.67 inch Working Current: 65mA Trigger Current: 3mA Load Current: 10A max Single Socket Length: 7.5mm Response Time: Less than 20ms Power Interface VCC(+): Connect to the positive pole IN: High level control relay suction GND(-): Connect to the negative pole Load Interface: NO: Normally open interface COM: Relay common interface NC: Normally closed interface Feature: The relay module has the output signal indicator light indication; 2. The signal input port can connect SCM IO port, high level signal drive; 3. Dual power supply design with anti-interference ability and high reliability of photoelectric isolation protection ; 4. With diode continuous flow protection; 5. Response time is less than 20 milliseconds; 6. of relay can be absorbed 100,000 times continuously; 7. The external connection uses the Rotary crimping terminal, causes the wiring to be more solid; 8. With fixed installation hole, easy to install. Package Contents: 6 pcs Relay Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.