Product Details: Place of Origin: Zhejiang, China (Mainland) Brand Name: Yom Model Number: CZ-4000S Output Power:4000W Output Type: Single Phase Machine Size: 42.5*21.7*15.3cm Machine Weight: 10.25kg Efficiency: 90% Cooling Way: intelligent Cooling Fan Certificates: CE & RoHS & ISO9001 On/Off Grid: off grid Waveform: Pure sine wave Working Temperature: -30C~+50C AC Regulation: THDC3% Protection: .Buzzer alarm .Soft start .Reverse polarity .Grounding protection .Over-load protection .Low-voltage protection .Over-voltage protection .Short-circuit protection .Over-temperature protection .Auto reset after being in protection 1pcs/box, unit box size 59*33*28cm,N.W 10.25kg, G.W12.4kg