... use of a Pure Sine Wave Inverter.1. Approvals:CE mark / EMC / LVD/ RoHS2. Output wave form: Pure sine wave output (THD<3%)3 ... voltage, over battery voltage, lack-voltage alarm. Protections:short circuit, overload, over temperature,Applications:You can use many place. ... voltage, over battery voltage, lack-voltage alarm. Protections:short circuit, overload, over temperature.) and so on.Warranty:We ...