PC817 3.6-24V 2 Channel Optocoupler Isolation Board Driver Photoelectric Voltage Converter Adapter Module 
Feature:
1. When encountering the need for isolation control and voltage conversion in actual work, this module will be used.
2. It can realize 3.3V or 5V control 3.6---24V voltage level interface. After the control terminal is turned on, the controlled terminal will also be turned on.
3. The optoelectronic isolation has strong anti-interference ability. It can drive high-power transistors, MOS tubes and other occasions that require high-voltage drive at its back, and can also directly drive low-power 24V relays.
4. If it is a pulse signal, please note that the limit of 817 is below 4KHz, please do not use this module for control signals greater than 4KHz, it will not work properly.

Specification:
Product Size: 37 X 30 X 10mm/1.46 X 1.18 X 0.39"
Output Terminal Signal Voltage: 3.6-24V
Output Voltage Range: 3.6-30V  (The output current depends on the specific situation but the maximum should not exceed 10mA. The total power is certain, and the voltage and current are inversely proportional)
The jumper cap can realize whether the output terminal is high potential output or low potential output.
The 2 817 channels on the board are independent, which can realize simultaneous control of different voltages.

Note:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.
1 X Voltage Isolation Board