16 Channel I2C Solid State Relay Module for Arduino, Raspberry or any other microcontroller I2C expander MCP23017 Device specification:- PCB board dimension 216mm x 72mm- Compatible with DIN rail plastic holder- Full optoisolation from high voltage- Operation DC voltage – 3.3V and 5.0V- Maximum current @5.0V – 450mA- AC controlling voltage range 100…240VAC- AC voltage frequency range 50…60Hz- Minimum AC current per channel – 30mA- Maximum AC current per channel – 2A- Changeable I2C device slave address- Can be connected up to 8 devices to the one i2c line bus, that mean can be controlled up to 128 channels- LEDs indicators for each SSR relay channel, color RED Arduino test code, slave address 0x20 Please contact with us for more resources