9 Electrical signalling apparatus, namely, electrical annunciators; electric power analyzers, namely, power meters or watt meters for measuring power characteristics of electrical devices; electricity indicators in the nature of indicators for detecting and measuring voltage; electric safety monitoring apparatus, namely, thermometers other than for medical use; electrical controlling devices; electric control devices for energy management; electrical controllers; electric control installations, namely, electric control panels; regulating apparatus for regulating electric current; electricity measuring instruments, namely, clamp meters; electric current meters for measuring electric current; current-meters for measuring electric current; thermal energy measuring apparatus; apparatus and instruments for accumulating electricity, namely, electric accumulators; electricity storage apparatus, namely, electric storage batteries; electric computer buffers; electric power units transformers; electrical rectifiers; electrical transformers; electric power supply units, namely, power supplies; electrical frequency converters; voltage-to-current converters; converters, electric; apparatus and instruments for switching electricity, namely, electric circuit switches; apparatus and instruments for regulating electricity, namely, voltage regulators for electric power; apparatus and instruments for transforming electricity, namely, transformers; electric power controllers, namely, electrical power controlling devices; power regulating apparatus, namely, voltage regulators for electric power; power conditioning apparatus, namely, power line conditioners; electrical charge controllers, namely, electrical charge controlling devices; induction voltage regulators; voltage regulators for electric power; electric power dividers; electric voltage transformers; electric current transformers; electric current switches; electric switchgear; electric power distributors, namely, electrical power distribution units; electric power distribution machines; electric power units, namely, power supplies; mains electric power units, namely, household electrical power distribution units; regulated power supply apparatus, namely, voltage regulators for electric power; electricity mains apparatus, namely, household electrical power distribution units