Emergency lights are lights that are expected to come-on in case of power outages. Several emergency lights are usually positioned in such a way that they will guide the occupants of a building to the nearest emergency door and then to safety.
In this part of the world (Nigeria) where power outages are very common, the importance of emergency lights can never be over-emphasized. There are many standards for the emergency lights. Some come in the "Green Light" category, some come in the regular "White Light" category and some are amber. However, whatever the color is, the lights must be available and regularly inspected, monthly is recommended, to ensure that the lights will work in case of an actual emergency.
Furthermore, emergency lights are mandatory requirements in emergency management systems for all occupational work environments with occupants. Also, it is good practice to have emergency lights available in homes and small offices. This may not be the standard emergency lights installed in occupational work environments, rechargeable lights can come in handy in this case.
The important thing to note is that the rechargeable light must have a permanent location known by every member of the family and must be fully charged at all time. The light can be used for several things until power is restored.