The Solar 4000 lithium battery is in milliamperes.
Solar cell is a kind of optoelectronic semiconductor sheet that uses sunlight to directly generate electricity. It is also called a “solar chip” or “photovoltaic cell”.
As long as it is exposed to lighting that meets certain lighting conditions, it can instantly produce voltage and generate current if there is a loop. In physics, it is called solar photovoltaic (photovoltaic, abbreviated PV), or photovoltaic for short.
Solar cells are devices that directly convert light energy into electrical energy by the photoelectric effect or photochemical effect. Crystalline silicon solar cells that work with the photovoltaic effect are the most widespread, while thin-film cells that work with the photochemical effect are still in their infancyions.