16 Way Relay (blue) / Relay Control Board / with Optocoupler Protection and a LM2576 Power Supply

1.Module description1.1. The module uses genuine quality relay, often open interface maximum load: AC 250V/10A, DC 30V/10A;1.2. The industry's top quality optocoupler, strong anti-interference ability, stable performance; trigger current is only 3mA;1.3 Module Voltage 5V, 12V, they are alternative; another 1, 2, 4, 8, 12 module you can choose from; the default is 12V; if you need 5V, please contact customer service. Thank you1.4 Operating with low level; the module contains a limiting current resistor, it can be directly controlled with the positive and negative pole of the power, also be controlled by the I / O interface of MCU;1.5 Power indicator, 16 relay status indicators1.6 The interface design is of human nature and all interface can be directly dragged out through the direct connection at terminals. It is very convenient.1.7 4 fixed bolt holes is set to make installation more easy.