-100% and high quality -Built-in protections from short circuit,overload,overheat,low voltage and over voltage.Keep your devices and car safe -Built-in cooling fan for span life and safety use -Smart size,light and compatible,lower noise and no pollution -Principle: This inverter is used for changing the DC into AC-charging input -Application: Mini electric grinders, Mini electric tools, Mini sewing machines, DVD, VCD,TV, computers, televisions, VCRs, fans, lighting and so on.