Gather energy, everytime by Mijin Chung from korea

It is not exaggeration that existing flashlight always waste energy as it holds battery all the time so that oxidizes lithium into the air while it is not used. About 4 million of dry cells are dumped per day, and heavy metal contained in dry cell may fatal effect to human and environment. Thus, to reduce environment pollution from waste dry cell as much as possible, mobile flashlight is developed by using selt-charging method. But it has some inconvenience that keep on shaking or uninterruptedly press handle bar attached on flashlight to charge the power.
To get electronic power, our product utilities the power that come from turning doorknob when we close or open door, and transforms its potential energy to electronic energy. The electronic power to be enter the flashlight is saved in the storage device installed inside flashlight, and will be consumed as light energy. The energy, comes from our daily unconscious activities, is transformed so that generates its own electronic power and uses it, which can be called as self-sufficing power system
In addition, this product can save electronic power that spend unnecessarily whenever you turn on the light to go toilet or to check baby in the middle of night. Also, such as sudden interruption of electronic power, whenever you need it, you can easily find the place where flashlight is and turn it on for light.
There is proverb that every little makes a mickle. "Saving" is not prohibiting spend and buy, but sparing activity from a little stuff. Combining each individual's saving avoids superfluous energy loss in nation-wide, and consequently, that may be the basis of green energy.