ITEM NAME:5V Four 4 Ch Relay Module with optocoupler for PIC DSP ARM Arduino 8051 AVR A Product Description Description: Features: 1. 5V Relay Module 4-Channel 2. This is a 5V 4-Channel Relay interface board 3. Be able to control various appliances, and other equipments with large current 4. It can be controlled directly by Micro-controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) 5. 5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current 6. Equipped with high-current relay, AC250V 10A, DC30V 10A 7. Size: 75mm * 55mm* 18.5mm(L*W*H) 8. Indication LEDs for Relay output status Application: 1. Supports all MCU control 2. The industrial field 3. PLC control 4. Smart home control Inclus: 1 X Relay Module.This is a 5V 4-Channel Relay interface board. 5V Relay Module 4-Channel. 5V 4-Channel Relay interface board, and each one needs 50-60mA Driver Current. 1 X Relay Module. Indication LEDs for Relay output status.