Featuring compactly design with 8 / 4 / 2 isolated channel, individual power indicators, and configurable input or output terminals, this voltages converters module 10mA driving capacity and IIC compatibility for flexible systems integration Ideal for electronics engineers, industrial automation designers, and enthusiasts working with systems, motor controls, or sensors interfacs requiring voltages matching and signals isolation 817 optocoupler drive terminals signals voltages: 3.6-24V Output terminals voltages ranges: 3.6-30V (output current depends on the specific situation but the maximums do not exceeds 10MA, the total power is constant, the voltages and current is inversely proportional It can realize 3.3V or 5V to control the interfaces of 3.6-30V voltages Perfect for isolating motors drive in robotics, adapting 24V inputs to 5V microcontrollers, or safely 12V sensors outputs in automotive diagnostic equipment through photoelectric separation