25Pcs 4 Channels IIC I2C Logic Level Converter 3.3V to 5V Shifter Bi-Directional Module

The bidirectional logic level converter is a small device which can safely steps down 5V signals to 33V and steps up 33V to 5V at the same time This level converter works with 28V and 18V devices 4 channels module can bidirectionally transfer with 4 channels between high logic voltage and low logic voltage Each logic level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side The board needs to be powered from the two voltages sources high voltage and low voltage that your system is using High voltage 5V for example to the HV pin low voltage 33V for example to LV and ground from the system to the GND pin