Batteries and Accessories (1445 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 (3495 companies)
Components and products used in electrical or electronics circuits.

Electrical Distribution and Protection (1311 companies)
Products used to distribute power and protect other equipments and systems from current or voltage surges.

Lighting Fixtures and Lamps (2601 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 (1244 companies)
Products and accessories related to power generation and storage.

Power Supply and Conditioning (3233 companies)
Devices that produce constant voltage and stabilize voltage levels and signals.

Relays and timers (1080 companies)
Relays and timers are used in a variety of circuit control applications.

Switches (1169 companies)
Devices used to route signals by allowing or preventing the signal flow when in closed or open position.

Wire and Cables (2545 companies)
Wires and cables used to transmit electrical power or signals.