Thank you for your reply, another, let say stupid question, can i use SHA256 equipment to mine litecoin?
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No, Litecoin is a scrypt coin. Bitcoin is a SHA-256 coin. You can only use SHA-256 ASICs to mine SHA-256 coins and scrypt ASICs to mine scrypt coins. Most altcoins are scrypt-based, but some of the older ones (Namecoin, Peercoin) are SHA-256-based and can be mined with equipment used to mine Bitcoin.
Edit: There are also other algorithims out there, such as scrypt-N, X11, X13, etc.