Businesses listed under Other electrical equipment typically make, distribute or supply electrical products that do not fit more specific categories such as domestic appliances, lighting or power-generation equipment. Their goods may include electrical control panels and switchgear, transformers, power supplies, wiring accessories, connectors, circuit protection components, batteries and specialist equipment for commercial or industrial use. The exact range depends on whether a business is a manufacturer, wholesaler or retailer. Services may include product design and development, assembly, testing, repair and maintenance, as well as advice on selecting equipment for a particular application. Suppliers may provide components to electrical contractors, manufacturers, facilities managers and other businesses, while some also serve household customers.