This is the electromagnetic lock works with DC12V, once powered it will release bolt and push open the door with weight within 0.5-4kg easily. The lock only need to power when open the door, which means it has a very low consumption, it can be used in mailbox, vending machine, cabinet, and it also has a toggle for emergency.
Note: power-on duration should not exceed 200ms,or it may damage the coil in lock.
Working Voltage: DC12V
Regarding the Electro magnetic lock, dimensions mentioned in the website are 63X 49X13... but the received is 78 X 53 X13.5. I need another 5 qty, but can you make to dispatch SKU: HS4388