An emergency light switches on automatically when the main power fails: it has a battery inside that charges during normal operation. It is a safety matter — people must see the exit and passages even in the dark.
The main selection parameters are the autonomy time (usually 1–3 hours), the brightness and the type: always-on, or only on power loss. In public and commercial buildings it is often required by code.
A separate category is rechargeable portable lights, handy for home, garage and production during outages. The Electrica Group catalogue has emergency and rechargeable lights, and we will help choose the right one for your site — the "For Long Life" way.
