Mechanical signs; digital signs; signal lanterns being traffic-light apparatus; electrical calibration devices as a unit for calibrating low voltage electrical appliances and equipment, namely, electric relays, voltage surge protectors, electric contacts, electrical fuses, electrical switches, household electrical appliances, low voltage electrical power distribution units and industrial control components; galvanometers; dynamometers; electric loss indicators, namely, faulted circuit indicators; electrical inductors; electricity meters; voltage stabilizer for electrical measurement; measuring devices, electric, namely, electronic devices for measuring electric current, clamp meters for measuring electricity; switches, electric; couplings, electric; electric plugs; high and low voltage switch board; photovoltaic inverters; inverters for power supply; power inverters; sensors, namely, electric sensors, motion sensors, and infrared sensors; circuit breakers; electric transformers; electrical distribution boxes; starters, namely, battery jump starters, remote control starters for vehicles; electrical components in the nature of electric contactors; electric relays; thermal overload relays; overvoltage protection relays; pulse-operated latching relays; relays for radio and television equipment; coaxial relays; relays, electric; electrical power distribution units; busway being electrical power distribution units; voltage surge protectors; voltage regulators; step-up transformers; electric control panels; remote control apparatus for radios, televisions, stereos, electric-drive curtains, and lamps; voltage stabilizing power supplies; regulating apparatus, electric, namely, voltage regulators; electric sockets; electrical connectors; electric light dimmers; electronic stage lighting regulators; commutators; electrified fences