Batteries and Accessories (1478 companies)
Devices that convert stored energy into electrical current; the two main types are chemical batteries and physical batteries such as solar cells, nuclear energy and thermal batteries.

Electrical and Electronic Components (3568 companies)
Components and products used in electrical or electronics circuits.

Electrical Distribution and Protection (1353 companies)
Products used to distribute power and protect other equipments and systems from current or voltage surges.

Lighting Fixtures and Lamps (2711 companies)
Lighting and fixtures are used for illumination purposes or to provide a source of light for a specific application. This category includes halogen, incandescent, fluorescent, and lighting fixtures.

Power Generation (1340 companies)
Products and accessories related to power generation and storage.

Power Supply and Conditioning (3240 companies)
Devices that produce constant voltage and stabilize voltage levels and signals.

Relays and timers (1106 companies)
Relays and timers are used in a variety of circuit control applications.

Switches (1199 companies)
Devices used to route signals by allowing or preventing the signal flow when in closed or open position.

Wire and Cables (2600 companies)
Wires and cables used to transmit electrical power or signals.