ITEM NAME:5X(1Pcs 12V 2 Channel Relay Module Shield For Arduino Arm Pic Avr Dsp Elec V3M5) 5X(1Pcs 12V 2 Channel Relay Module Shield For Arduino Arm Pic Avr Dsp Elec V3M5) 5X(This is a 2 Channel 5V Relay interface board, Be able to control various appliances, and other equipments with large current. It can be controlled directly by Microcontroller(for Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) . 1. Relay contact capacity 250V10A. Relay output normally open, normally closed; 2. Active low. 12V relay signal input voltage range :0-12V; 3. The VCC system power. JD-VCC relay power. Default 12V relay. JD-VCC and VCC shorted. Colour: Black Material: metal + pc Package Contents: 1* 2 Channel Relay Module).The VCC system power. JD-VCC relay power. Default 12V relay. JD-VCC and VCC shorted. Relay output normally open, normally closed;. Active low.