1. The safety of shock 2. The original constant power technology 3. Battery over-discharge alarm protection 4. Before and after class isolation technology 5. CPU core SPWM pulse width control technology 6. Doesn't affect the working life of electrical equipment 7. The installation of the MOS transistor anti-reverse technology 8. The original level of before and after the double soft-start technology 9. Components with high-quality original, ensure products with high quality. 10. With small, light weight, high efficiency, low distortion, no-polluting, low noise, aluminum alloy shell, surface blasting anodic oxidation treatment, high hardness, beautiful appearance.