The basic idea of a solar cell is to convert light energy into electrical energy, and that electrical energy is stored in electromagnetic fields, which in turn can make current electrons flow. Thus, a solar cell converts light (flow of photons) to electric current (flow of electrons). 

Furthermore, the (Uninterruptible power supply) UPS is an electrical device that store electricity to supply a property that is in need of electrical power source when the main power source fails. MicroTech offers a wide range of UPS with a different sizes, capacity, and shapes.