ok guys does anyone knows how to replace the headlight or knows a (DIY/ pics) for it i just got a Dual Halo projectors and i want a guide so i wont make any mistake. thank u....

Yep, replacing the headlights are very easy. Just take your time. I've done it 2 times now with no issues.
ok i think to replace the headlights will be fine but what about the Halos? where should i connect them ??

You have to run a separate switch for them.
Power and ground. Tie the 2 halo power wires together (each side) Tie the 2 ground wires together (each side) I run a lighted switch so I know that they're on.
Run power from the fusebox or battery (+) to the switch, Run the load wire from the switch to both halo power wires. Run ground wire from switch to battery. Run halo ground wires to battery (-side) or to a body ground.
It's a very simple circuit.
do u know where i can get that kind of switch damn can u tell im a newbe haha .. thank a lot ...
I tied mine into my parking lights so they come on with them.
LOL
I'm sorry... carry on... 
what about connecting it directly to the car i mean when i start the engine let them on ... instead of using the switch?
LOL
I'm sorry... carry on... 
Yeah, I know, David, I have two spare of those in my junk drawer that I'll probably never use, and it is unlikely that I'll buy from Oznium again, but my answer to the question asked is still valid: They are a source of the product and the quality of the product is good. 