There is usually no flashlight around when you need one, like when trying to open your car or home when it's dark. This new nifty light bulb is so thin and so small, it's the size of a credit card. You can fit it into your wallet and always be prepared.
The light bulb is actually the cut-out shape on the card which can be flipped up and switched. The pocket light is powered by a small cell and was designed by Hyun Jin Yoon and Eun Hak Lee.