I was looking for a solar panel company ,at my site and I came across okai electrical engineering on the internet so I called them and I'll give them my details then they said they will call me,I was not even believe in whether they will call me or not. But they call me ,so they give me an estimate and I give them the clash and as soon as possible now, I'm using a solar panel full day at my home without any off of power or any fault at all... thank you okai electrical engineering ..for doing a great work you have done for me.