Assertion: solar cell | /r/ObjectUse | used for lighting
Facets:
Source sentences:
text: The solar cells are used in the calculators and other small devices, the telecommunications, the rooftop panels on individual houses, and they are used for lighting, they are used in medical refrigeration for the villages in the developing countries, the solar cells in the form of large arrays are used to power the satellites and they are used to provide the electricity for the power plants.