Durable Low Frequency Off-grid Pure Sine Wave 4000W Solar Inverter

1.Professional solution for Off-Grid System 

2.Perfect combination of Low-Voltage UPS and inverter 

3.Self-consumption down 50% than low frequency inverter 

4.Dry contact : no AC output or O.TO.L UV to other device 

5.Remote control RJ11/RJ45: PTM-10 and PTM-12 (optional) 

6.Input AC : power via grid power or Generator compatibly

7.Pure sine wave output input & output fully isolation

8.Three-gear switches with energy saving mode

9.Attractive appearance with V0 plastic 

10.AC input to start inverter function 

11.Input polarity /UVP/OVP/OSP/OLP/OTP

12.Network via RS232 Communicate Protocol ( optional) 

13.DIP Switches : Output frequency A output range charger current DC/AC priority

Q1: What's the difference between pure sine wave inverter and modified sine wave inverter?

A1: Pure sine wave output is the same as the AC government power output. Even better. Low repaired rate long lifespan Without harmonic pollution  enviromental-friendly and appliances protected.

Modified sine wave output has a negative impact on appliances and can't load inductive load such as air contition refrigerator and etc.

Q2: What kind of output you can do?

A2: Normally we produce inverter with 110v/ 50Hz 120V/ 60Hz 220v/ 50Hz 230v/ 50Hz 240V/50Hz.

If you have special requirements pls tell us for engineer consulting.

Q3: What appliances your inverters can load?

A3: Our inverter can load household appliances other inductive load such as refrigerator air condition water pump etc.

Q4: What is the warranty for your products?

A4: For the inverter controller and battery we have 1 year warranty. For the solar panel we have 10 years warranty. If any problems on our side occured during warranty time we will be responsible for that.

Q5: What's your products lifespan?

A5: Usually for inverter and battery lifespan is 5 years. for solar panels over 20 years However  if you keep good maintenance for them It will be longer and longer.

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