ITEM NAME:5V 2 Channel Relay Module With optocoupler For PIC AVR DSP ARM Arduino Product Description Description: 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) . 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current. Equipped with high-current relay, AC250V 10A ; DC30V 10A. Standard interface that can be controlled directly by microcontroller (8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). Optocoupler isolation, with good anti-interference. Specifications: Max Output: AC250V 10A ; DC30V 10A VCC: Positive GND: Negative IN-IN2: Control port Size: approx.50.6*38.8*19.3mm/1.99*1.52*0.75'' Net weight: approx. 30g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding. Included: 1 x 5V 2 Channel Relay Module.Optocoupler isolation, with good anti-interference. 5V 2-Channel Relay interface board, and each one needs 15-20mA Driver Current. Included: 1 x 5V 2 Channel Relay Module. Equipped with high-current relay, AC250V 10A ; DC30V 10A.