Most of the doors I've seen have an electric strikeplate rather than an electric lock. You should be able to find these at local commercial door suppliers. The ones I've seen are a solenoid operated by 24VAC. Hope that helps, Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams Gimli wrote: > I need to find a normal door lock ( room ) which i can controlled electronically. Does anyone has any idea or recommendations? The door lock that i am searching is those that allows me pump in a certain voltage for locking and unlocking purposes. Very similar in concept to those automotive door lock where the locking and unlocking is based on polarity supplied. What i wanted is just the mechanical portion of the lock and also the electo-mechanical portion that is capable of locking and unlocking. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics