Features EXCELLENT PCB: Good quality PCB materials possess reliability and miniaturization, good maintenance and interchangeability. SIMULTANEOUS CONTROL OF DIFFERENT VOLTAGES: The 4 channels of 817 on the board are independent, which allows simultaneous control of different voltages, etc. DRIVE VARIOUS OCCASION: Optical isolation has strong interference resistance ability, which can drive high-power transistors, MOS tubes and other occasions that require high voltage control, and can also directly drive low power 24V relays to operate. Turn on the controlled terminal Our optocoupler isolation board can realize 3.3V or 5V control interface of voltage level 3.6-24V, after the control terminal is turned on, the controlled terminal will also be on. HIGH LEVEL OUTPUT OR DOWN SWEATER: Whether the output terminal is a high-level output or a pull down output can be achieved via the jumper cap. Specification: Item Type: Optocoupler Insulation Board Material: PCB Driver signal voltage: 3.6-24V Output voltage range: 3.6-30V (the output current depends on the specific situation, but the maximum power does not exceed 10MA, the total power is constant, the voltage and current are inversely proportional) Package list: 1 x Optocoupler Insulation Board Note: If it is a pulse signal, please note that the limit of 817 is less than 4KHZ, please do not use this module for control signals greater than 4KHZ, which will not work properly. Package List 1 x Optocoupler Isolation Board