Which IC are you using. Please attach the schematic and pls send the waveform of the inverter.

the above waveform is taken in X10 mode.please make a note of this.attached schematic also.We have used LNK419EG

Hi

For a square wave input, the output current can be different from the normal sinusoidal input. Pls confirm if this is the problem. For these situation, you may need to retrim your IFB if youre going to use an inverter .

Regards 

Hello sir,

we are using the LED lamp at 230V mains AC.if power failure occurs,we are using the square wave inverter.

It is working fine in Mains,but problem occurs in inverter only.

Is there any solution to use LED lamp in both? 

Pls confirm what is the problem you see when you use an inverter. Is it regulation or something else?

It is visible Dim and Dip

Can you attach the output current waveform when using an inverter?