magnetic lock with built-in LED. Wooden,glass,metal,fire proof door. Magnetic Lock Size: 250Lx48.5Wx25H(mm) Armature plate: 180Lx38Wx11H(mm) Holding Force: 280kg(600Lbs) Voltage: 12/24VDC+10% Current Draw: 12V/500mA 24V/250mA Signal Output: Dry Contact,Max Rating of Contact Current 3A LED red indicates the door is unlock,Green indicates the door is lock Suitable for: Wooden door , Glass door ,Metal door , Fireproof door Surface Temp: ?+20°C Operating Temp: 10~+55C(14-131F) Finishes for Shell: Anodized aluminum access control system price