In contrast, prunes' reputation for being rich in iron doesn't hold true. In reality, they're a decent, but not spectacular, source. Prunes, however, get overlooked as a source of vitamin A, even though they provide more than ten percent of recommended levels.
Solar cell. A solar cell, or photovoltaic cell (previously termed solar battery), is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.
The solar cell in an Citizen Eco Drive watch collects energy from light sources, both natural and man-made. This energy is stored in a capacitor. This capacitor works like a rechargeable battery (it is sometimes called the power cell or secondary battery).