- Continuity tester: easy to start for beginners and capable of testing continuity and voltage quickly. Compact and handy light tester for everyday use. - Lead test light: indicator light helps automotive technicians test electrical systems in low light conditions. Useful circuit tester for automotive work. - 12 volt tester: copper probes easily pierce wire insulation to check circuits. Great for checking circuits and wiring in cars and other 12V electrical tools. - Continuity tester with light: extendable spring cable enables testing of any electrical system with ease. Includes a voltage display for quick readings. Use scenarios - Diagnosing automotive wiring at night: use the lead test light to verify live circuits, check fuses, switches, and connectors in dark conditions. - Verifying 12V circuits in a vehicle: use the copper probes to pierce insulation and confirm circuit continuity and voltage along car wiring, battery, and accessories. - General electrical testing in workshops or on trailers and motorcycles: extend the cable for reach, test various electrical systems, and read voltage with the display to ensure proper power delivery.