Description: Specification Product Name 12V Relay ModuleMaterial Copper Plastic1 Channel Size 4 2cm x 1 5cm2 Channel Size 5cm x 3 5cm4 Channel Size 7 5cm x 5 5cm8 Channel Size 13 7cm x 5 5cm16 Channel Size 17 8cm x 9cmChannel Type 1 2 4 8 16Working Voltage 12VUse 1 Support all microcontroller control 2 Industrial field 3 PLC control 4 Home intelligent control 1 Channel 1 Onboard EL817 optocoupler strong anti jamming capability with optical isolation 2 Onboard 12V 10A 250VAC 10A 30VDC relay relay life long continuous pull 100 000 times 3 The module can be directly and microcontroller I O link with an output signal indicating 4 The module has a freewheeling diode protection short response time 2 Channel This is a 2 Channel 12V Relay interface board Be able to control various appliances and other equipments with large current It can be controlled directly by Microcontroller 8051 AVR PIC DSP ARM ARM MSP430 TTLlogic 1 12V 2 Channel Relay interface board and each one needs 15 20mA Driver Current2 Equiped with high current relay AC250V 10A DC30V 10A3 Standard interface that can be controlled directly by microcontroller 8051 AVR PIC DSP ARM ARM MSP430 TTLlogic 4 Channel 1 This is a 12V 4 Channel Relay interface board 2 Be able to control various appliances and other equipments with large current 3 It can be controlled directly by Micro controller 8051 AVR PIC DSP ARM ARM MSP430 TTLlogic 4 12V 4 Channel Relay i