An electronic load is the counterpart of a current source, i.e. a current sink. It is a device originally used as an intelligent replacement for a conventional (resistive) load resistor. Today, an electronic load replicates all imaginable types of loads.

Customers use electronic loads in a wide variety of applications, especially for testing power supply and control units, batteries, fuel and solar cells, generators, transformers, uninterruptible power supplies (UPS), on-board power systems and many more.