Test leads are specialized wires or connectors used to establish a connection between a testing device and the object being tested. They are essential in various fields, including electronics and engineering, to measure voltage, current, or resistance. Test leads come in different types, such as banana plugs, alligator clips, and test probes, each designed for specific applications. These leads are typically insulated to ensure safety during testing and to prevent short circuits. Proper use of test leads is crucial for accurate measurements and reliable results. They are commonly used in laboratories, educational settings, and by professionals in the field of electrical engineering.