1>What's the difference between Modified sine wave and sine wave?

 
As the modified sine wave ,the top voltage to RMS voltage do not maintain the same relationship as for a sine wave. 

Sine wave inverter produces a sine wave output,they can bear the top power when the load start working,thus they are able to connect with the inductive load(such as refrigeratory/air conditioner/electrical drill.)

2>How do I connect to a power source?

CAUTION: Before making any connections ensure inverter is switched off and has no alternating current appliances plugged into thealternating current output sockets.

     1. Connect the ring terminal on the negative lead (Black) to the negative (Black)                         

     2. direct current   terminal on the back of the inverter.

     3. Connect the battery clip (Black) or ring terminal on the other end of the lead to the negative  

         direct current   supply or (-) battery terminal.

     4. Connect the ring terminal on the positive lead (Red) to the positive (Red)  direct current   

         terminal on the back of the inverter.

     5. Connect the battery clip (Red) or ring terminal on the other end of the lead to the positive  direct

            current   supply or (+) battery terminal.

3>How do I connect an appliance & run the inverter?

1. Connect the appliance alternating current plug to the inverter alternating current outlet socket.
2. Switch the inverter ON, the green power light will illuminate to indicate operation.
3. Turn the appliance ON, if the appliance is fitted with an On/Off switch always switch the inverter on before switching the appliance on and always turn the appliance off before switching the inverter off.
4. When not in use, turn the inverter off

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