A fail safe electric strike needs power to keep it bolted. A fail secure electric strike stays bolted even without power. The most well-known by a wide margin is a fail secure. At the point when utilizing a fail secure electric strikes even without power it stays bolted from the outside coming in. For departure or getting out, a door knob or lever on the lock takes into consideration safe way out. In the event that you should utilize a fail-safe electric strike keep in mind to back it up.