People of the prehistoric era were really great. It was a time when there was intense darkness everywhere without any light source. They were able to live with the help of moonlight. With the discovery of fire, they were able to light woods and were able to chase the darkness.
Now, we have got everything. A single touch of the switch will light various lamps, tube lights, and a variety of door lights. Light, in addition to safeguarding us against the darkness and helping us in viewing objects, has become a symbol of beauty. A variety of decoration lights is available in the market these days.
Apart from the normal lights, we also have flashlight these days. These flashlights again act as a safety equipment in the dark when the power goes off or while camping. There are varieties of flashlights available in the market.
Initially, these were slightly big. Though these were not bigger than a foot, it was a bit heavier with many dry cell batteries and was made up of metals as the outer cover.
Slowly, the size of the flashlights reduced and the outer material also varied. Though the size got reduced the power of light increased.
Now, we have flashlights of different models and various types. The size of the battery got reduced and we have tiny batteries which can produce high power. The bulb of flashlights that are used also varies. Some of the best flashlights that are used today are the LED flashlights. These flashlights are more powerful and produce sharper lights.
Later came the use of rechargeable flashlights. The batteries that are used in the flashlights can be charged when the power starts to dip. So, instead of disposing of the flashlights, one can reuse it again and again by charging it.
The technology is still improving and we can expect lot more changes in flashlights.…