Batteries; Battery chargers; Lithium iron phosphate batteries; Power inverters; Solar panels for the production of electricity

Fiber optics; fiber optic couplings; optical fibers; data processing apparatus; electrical and optical signal transmission apparatus; photovoltaic apparatus for converting laserlight to electrical energy, namely, photovoltaic cells; electrical apparatus for controlling, testing and monitoring electrical measurements circuits; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; Data and energy transmission system, namely, an i...