Emergency lights come in many forms and are used to illuminate an area
during an emergency or when power goes out in a building. The main forms
of emergency lighting are typically those powered by the backup
generator of a building, batteries, and even solar power. This type is
often used for a safety light, a standby one, and to illuminate escape
routes.
Backup Generator Lights
Many buildings have a backup generator installed that supplies
emergency power. This is often provided by a diesel engine or an engine
that is powered by natural gas. Emergency lights are wired to switch on
if the generator is activated. They are often used to power low-level
lighting that allows people inside of a building to find their way out
safely.
Batteries and Solar Power
Some types of emergency lights are designed to run off of batteries.
When power does out, the batteries in these lights are used to provide
temporary power. You can also find other types that will run on solar
power. These lights also use a battery, but the battery is being charged
by the sun. Batteries for a solar light are kept constantly charged. A
flashlight is an example of a LED emergency one requiring a battery.
Safety Lights
This type of lighting is also known as high-risk task lighting.
These ones are used to illuminate places or areas in a building that
need to be accessed in an emergency. This includes the access to
stairwells or hallways that would otherwise be dark if the power went
out. Manufacturing plants often have this type of lighting to allow
workers to quickly exit a building or to shut down equipment.
Standby Lights
These lights are installed in buildings that have a backup
generator. When a power failure occurs, these are used to allow critical
work to continue. They are often found in hospitals, fire stations, and
in other buildings that require continually running services. Standby
lights will activate and power on if a power failure occurs or the main
power goes out.
Escape Route Lighting
Hallways and paths that are used to evacuate a building will require
escape lighting. These will often be LED emergency light that are floor
mounted. When power goes out, these lights are used to provide a
lighted path to an outside door or exit out of a building. The use of
escape lighting is designed to keep a person from getting disoriented. A
common area for escape lighting is a movie theatre.
Additional Information
A common type of emergency light is an exit sign that is located
over the door for a building. This light is often powered by a battery.
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