This Arduino 5V relay module is suitable for SCM development， home appliance control. <br />It is with 5V~12V TIL control signal which can control DC / AC signal. <br />The module is perfect for common Arduino application.  <br />Dimension: 34*26*19 mm  <br />Features: <br />1. Brand new 5V relay module <br />2. Can be used as a microcontroller development board module， also can be used for home appliance control<br />3. 5V-12V TTL control signal <br />4. Control of DC or AC signal， control 220V AC load <br />5. With a normally open and a normally closed contact <br />6. With power indicator <br />7. With control indicator， lights on when connected and turns off when disconnected  <br />8. Triode driver increases the relay coil and controls pin high impedance <br />9. Control pins have pull-down circuit to prevent vacant relay malfunction <br />1 x 5V Relay Module<br /><img src="http://img6.eachbuyer.com/x9/p100/eb3782_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb3782_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb3782_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/eb3782_4.jpg" />