Emergency lights have come a long way!! Back in the old days, they were huge steel boxes containing a large heavy battery with two big lights on top. These boat anchors could weigh a ton, not to mention they looked like a robot and took up a lot of room.
In the last few years they have all become LED. This means smaller batteries and smaller housings. One of the smallest is the Lithonia EU2LM12.
The Lithonia Lighting® EU2L LED Emergency Light is suitable for emergency lighting applications such as stairways and hallways.
Its low profile design with small, unobtrusive dual lamp heads makes the EU2L ideal for safely illuminating the path of egress in small spaces at lower mounting heights.
It can be wall or ceiling mounted and will provide 90 minutes of emergency power in the case of power loss.
Test switch and status indicator
UL indoor damp location 50°F to 104°F (10°C to 40°C) listed standard
For use with dual voltage 120/277VAC