Brand N/A Model N/A Quantity 1 Color Blue + black Material FR4 Features 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(Arduino 8051 AVR PIC DSP ARM ARM MSP430 TTL logic). Specification Equiped with high-current relay AC 250V 10A ; DC 30V 10A With 4 fixed screw holes hole diameter: 3.1mm; Optical coupling isolation good anti-interference; VCC system power JD_VCC relay power default 5V relay just plug in jumper cap; Indication LED's for Relay output status Application Great for DIY project English Manual/Spec No Packing List 1 x Module