Features: brand new and high quality EASY TO INSTALL. This k81 power supply control is made of high quality metal, with colling vent hole on the side of the device, sturdy and designed to last. Small size, saving space, compact and easier for you to install. ESSENTIAL DOOR CONTROL PARTS. This power supply for door access control is a transformer, providing stable output voltage for access controller, electric lock, and door access exit button. GREAT WORKING PERFORMANCE. Support, for DC 12V 3A output current, AC 100-260V input voltage. Set NC / NO outputs, can control various types of electric locks, Based delay control circuit, lock for time can be in 0-15 seconds. SAFE AND DURABLE. Short-circuit and overload for protection designed. Can control various types of electic gate lock, electric strike lock, electic bolt lock, magnetic lock. WIDE-APPLICATION. Available for variety kinds of building intercoms, villa doorbell, aparment doorphone, home video door phone controller, access a variety of import and export controls. Specifications: Color: Silver Material: Metal Rated Power: 30W Output Voltage: for DC 12V 3A Input Voltage: AC 100-260V Output Current: for DC 12V 3A Output Frequency: 50~60（HZ) Working Temperature: -20~+65℃ Size: Approx. 12.8x8.2x3.1cm/5.04x3.23x1.22in Weight: Approx. 350g Package Includes: 1 Piece K81 Power Supply Control note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!