LY03 DC12V 0.4A 4.8W Electromagnetic Lock

A small solenoid lock for cabinets, lockers and access control projects. Applying 12V retracts the bolt and releases the door; removing power lets a spring return it. Two practical points that catch people out: it needs a proper 12V supply and a relay or MOSFET to switch it, never a direct Arduino pin, and it must be fitted with a flyback diode across the coil or the switching spike will eventually damage your driver. Ask us if you want the right relay module to go with it. Compact solenoid suits cabinets and lockers; Simple 12V switching from a relay module; Spring return holds the bolt when unpowered; Pairs naturally with RFID and keypad access projects