Here is a cool design concept from designer Harc Lee, the Pocket Light, a simple yet brilliant idea.
The Pocket Light is about the size of a credit card, and it is designed to fit in your wallet, just pop out the light bulb from the centre and it lights up.
I think this is a great idea, and I am sure it wont be long before some manufacturer picks this idea up, it could be made with OLEDs and paper thin batteries.
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