PPST

electrical and electronic products, namely, power converters and frequency converters to change the frequency of electric power supplied to electric appliances and electric machines; AC-DC power converters, switching power supplies; electrical power controllers; Electronic loads primarily used for voltage and current power characterization, namely, testers used for testing of batteries and energy storage testing, power supplies and electronic component testing, and generator and alternator testing, photovoltaic and solar testing, and fuel cell testing; programmable DC and AC, air-cooled electronic loads primarily used for voltage and current power characterization, namely, testers used for testing of batteries and energy storage testing, power supplies and electronic component testing, and generator and alternator testing, photovoltaic and solar testing, and fuel cell testing; electrical programmable DC power supplies primarily used for automated test equipment; automatic electric power test equipment, namely, programmable AC and DC electronic loads; programmable DC power supplies; Electronic equipment for measuring, testing and calibration in the field of electronic equipment for scientific or industrial purposes

providing commercial information in field of electrical and electronic products; providing a website used to place on-line commercial orders in the field of electrical and electronic products; retail store services featuring electrical and electronic products primarily for commercial and industrial customers; wholesale store services featuring electrical and electronic products primarily for commercial and industrial customers

repair and servicing of electronic equipment; repair and servicing of electronic equipment for measuring, testing and calibration

rental of power generating equipment

calibration services, and related consultation services; electronic testing of electronic equipment for scientific or industrial purposes; rental of measuring, calibration, and laboratory testing equipment

Rental of medical testing equipment