SainSmart 5V 2A 4 Channel Solid State Relay Module High Level Trigger Black for Arduino Uno Duemilanove MEGA2560 MEGA1280 ARM DSP PIC Standard interface that can be controlled directly by microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) Rated output load: 2A at 100 to 240VAC. (50/60Hz) Equip with high-current relay, AC250V 10A; DC30V 10A Indication LED for Relay output status 5V 4 Channel Relay interface board, and each needs 15-20mA driver current