There are many types and functions of light today and most, if not all, are powered with direct electricity from their power outlets in the location. But beside those common electric powered lights, there are also battery powered lights which lit on with the power of battery. The main purpose of this kind of light is mainly for mobile purpose where the light can be carried anywhere without direct supply of electric for certain period of time. Field works are great users of this kind of light where people have to carry light source when they are on the field do their work/activity.
One of obvious advantage of battery powered lights compared to direct electric powered lights is their mobile ability. People carry this kind of light source for clear reason, because they are going to be likely not in close with any electric powered light at certain point in time. And battery powered light is a great solution to provide people with light source to help their task for certain period of time without having direct contact/supply of electric power.
There seem to be countless models of battery powered lights available these days in the market. Each of them carry their specific purpose and function. There is one for people to have sufficient light when they are on the outdoor without having to hold it with their hand and simply by put it up on their helmet and provide light to any direction they look at. There is also another type which people can just put anywhere in stand position to provide sufficient light for certain period of time to surrounding areas.
Battery powered lights are very ideal for a great outdoor activities. There are many activities and professions out there which highly dependent with the existence of this kind of light source to support their task and duties. Professions such as night guard, fire fighter, soldiers and many other which have a great involvement with outdoor activities are those rely on battery powered light.
In terms of capacity, there are various types and amount of capacity in battery it self which depends on the purpose of the light itself. Those battery powered lights which are meant for just general use at home or any casual task may use general type of battery but those mainly and purposely made for serious outdoor activities surely will carry special type of batteries which can supply lot longer period of time for power supply to the lights.