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Last summer I had the opportunity to play with a WakaWaka light. It’s a lightweight, durable yellow brick with solar PV cells on one face. You leave it in the sun for about 8 hours and it has enough juice to charge a mobile phone or provide over 100 hours of light through LEDs. It has a convenient cutout that lets it sit on soda bottles to provide light for a room, or allowing it to be hung from a ceiling.

Very cool! To read more, click here.