daoki 5pcs 4-channel dc 5v safety relay shield module board with optocoupler for arduino dsp avr pic arm ttl logic daoki pecification:<br />5v relay module 4-channel<br />this is a 5v 4-channel relay interface board.<br />be able to control various appliances, and other equipments with large current.<br />it can be controlled directly by micro-controller (arduino , 8051, avr, pic, dsp, arm, arm, msp430, ttl logic) .<br />5v 4-channel relay interface board, and each one needs 50-60ma driver current.<br />equiped with high-current relay, ac250v 10a ; dc30v 10a.<br />indication led's for relay output status.<br /> <br />application:<br />supports all mcu control.<br />the industrial field.<br />plc control.<br />smart home control.<br /> <br />package included:<br /> 1pcs*5v eight 4 channel relay module for pic avr dsp arm arduino