hi thanks for the reply,but i ithink i did not explain fully.its like a project i have to submit and after that i would use it for personal use cos i love the stuff.pls i need to build a 12v,220v-240v,50-60hz,1.5kva or 2kva.pls am begging i need an understandable circuit diagram with things i need.i have a few items.i know its costly but am an electrical student and its my project.pls anyone who has info pls help me.i have to submit ontime.thanks as u reply.merry christmas and happy new year.