Electric fields exist when a charge is present, therefore we're exposed just by sitting next to a lamp that's plugged into an outlet.

当电力供应存在时，电磁场便会产生。所以，当我们坐在一盏打来了的台灯旁边时，我们便暴露在电磁场中了。

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Solar energy traffic warning yellow lamp and solar energy traffic single lamp are widely used on super high way, charge station, crossways, zebra line bridge and parking lot and other areas.

太阳能交通警示黄闪灯和太阳能交通信号灯，广泛应用于高速公路、收费站、十字路口、分割岛、桥梁、停车场等各个方面。

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Intelligent control series of products is equipped with intelligence controller, can charge a ware for controlling the lamp light pattern by swaying.

智能控制系列产品带有智能控制器，可以通过摇控器控制灯光模式。

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For renewable energy on a smaller scale, a graduate student in Israel developed a prototype for an elegant rocking chair called Otarky that produces energy from its rocking motion and can be used to charge devices and power a lamp.

ENGADGET: Inhabitat's Week in Green: GPS shoes, shape-shifting bicycle and a wheelchair helicopter