It's an emergency light. If there's a power cut/fire this light will come on so you can see. It's battery powered and the green light means it's working.
Source: I have dozens of these in my building.
Lostprophets.. Shame, as Shinobi vs Dragon Ninja is a banger.
It's an emergency light. If there's a power cut/fire this light will come on so you can see. It's battery powered and the green light means it's working.
Source: I have dozens of these in my building.