Electromagnetic Lock, Magnetic Lock, Opening Action Electromagnetic or Manual, Amp Draw @ 12V 670mA, Amp Draw @ 24V 350mA, Input Voltage 12/24V DC, Features Bi-Color Led Indicator, Holding Force (Lb.) 1,650, Instantaneous Release Delay, Aluminum Finish, Standards UL Listed, Options Included Dual Voltage, For Use With Access Control, Includes Mounting Hardware