ITEM NAME:5V 2 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVR A9I5 5V 2 Channel Relay Board Module Optocoupler LED for Arduino PiC ARM AVR A9I5 2 CH With Optocoupler(Black) 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) . 1.5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current 2.Equiped with high-current relay, AC250V 10A ; DC30V 10A Materials: CCL Package Included:1PCS*Relay Module Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.