This final paper describes the keyword electronic load through its properties, development, management, application and abilities and testing in the laboratory. They are increasingly used to testing various electronic devices and systems, batteries, and various concepts of advanced microgrids. Most electronic loads have the ability to simulate different modes of operation, including dynamic mode, constant power, constant voltage, constant current, constant resistance, power factor, peak factor or short circuit modes. Carriers can be programmed to dynamically change the mode of operation to simulate changes in load conditions. Instructions on how to properly connect and use the device and its environment are given. To properly connect the device, the construction of product and a block diagram are shown, as well as its technical specifications. The proper use of the device, safety and precautions are described by reviewing of the operating modes and conditions of their management and alarm status, and by analyzing manual and remote control. The device was connected and prepared for operations, and its connectivity methods and basic features were tested with function generator which is included in EA Power Control software.