A rechargeable emergency light has many advantages. It is easy to use, has a long battery life, and is compact. Some of them even come with a built-in hook for hanging. Another type features an auto-on feature and an adjustable brightness knob. It can last up to 10 years and is made of lead-calcium batteries.

These lights are available in single or double head configurations for small or large spaces. They are also available in a variety of wattages, lumen outputs, and volts. They all have a battery backup, so if one of them runs out, you can use the other ones.

Emergency lights are essential during a power outage. Without them, you would be suddenly thrust into the dark. If there's no power, you'd have to fumble around for a light, which is a terrible situation to be in. Using an emergency light will help you stay a step ahead of the situation and alert you and your family to potential problems or dangers.

These lights have a battery backup system and are designed to automatically come on when power is lost. Many new commercial and high-occupancy residential buildings are required to have them. Many older buildings also have emergency lights. Before the advent of fluorescent lights, emergency lights were made of incandescent light bulbs. These days, however, they are mostly made of light-emitting diodes.