... ≤±1-3%response time< 1seffeciency>90%protectionDouble protectionover voltage protection,over load protectionThermal Protection,Short Circuit Protection,Alarm ... Noise< 50dB within 1 meter Remark:input and output voltage can be adjustable as per the customers' request,customized ... AC power frequency converter,power stabilizer,voltage stabilizer,solar power inverter,DC to AC inverter and 400 hz ac power ...