1、Heat Dissipation Performance: Our high performance vector frequency inverter uses a 24V DC cooling fan and an external aluminum cooling base to dissipate heat very efficiently. 2、Double Layer Board Design: Our high performance vector frequency inverter adopts double layer board design and streamlined layout, and the PCB board is treated with triple proof paint, which has a simple structure and low failure rate. 3、User Friendly Operation: Our high performance vector frequency inverter is very humanized operation, high bright red digital tube display, to avoid misoperation. 4、ABS Material: The high performance vector frequency inverter is made of ABS fireproof and heat resistant plastic material, and the terminals are fully enclosed to avoid the danger of electric shock. 5、Precautions: Please note that AC drives should not be installed indoors and protected from direct sunlight, dust, corrosive or combustible gases, fumes, steam, water or any other liquids entering and salt.