fedail, am I right in understanding that English is not your first language? If this is so, then I admire you for not being 'put off' posting. How long have you been writing english for? I am learning another language right now, I know how difficult it is to communicate in a technical subject. When not conversing together face-to-face in real life it is more difficult.
Are you looking for help for how to control a mains light dimmer from a PIC? (I am making an "educated guess" right now, based on your previous postings). Please try again to write more text about what it is you are asking.
If english isn't your first language, then as far as I'm concerned you are allowed to make grammar and spelling mistakes, just as anyone else would make mistakes writing in your first language.