GBU408 is a bridge rectifier with rectification efficacy of 400V - 800V, 8A and is a RoHS (Restriction of Hazardous Substances) compliant product manufactured by the electronic component maker Pingwei. The device is made up of two independent high-frequency, ultra-low-loss diodes together with a rectifying bridge, and is an effective solution for a variety of power supply designs. It has low reverse current to effectively reduce power dissipation and lower the workload of cooling fans. This device is suitable for a wide range of applications, including air-conditioners, refrigerators, compressors, elevators, electric motors, generators, pumps, and many more.