- Easy to Use: The lead test light is designed for everyone, including those without technical experience, making voltage testing simple and efficient. - Versatile Testing: This test light features a voltage display and can be used for various applications including testing continuity, voltage polarity, lights, motors, short circuits, and identifying bad contacts. It is an essential 12-volt tester for automotive and electrical work. - Real-Time Voltage Monitoring: The uninterrupted voltage display updates in real-time, providing instant feedback for accurate testing. - Durable and Effective: Equipped with copper probes, this automotive test light easily penetrates wire insulation, allowing for effective circuit checks and wiring inspections in vehicles. Use Scenarios: 1. Quickly diagnose electrical issues in your car by checking the voltage at various points in the circuit. 2. Test continuity in household wiring to ensure safe and reliable connections. 3. Verify the polarity of electrical components to avoid potential damage during installation. This 12-volt test light is a reliable tool that combines ease of use with essential functionality, making it an indispensable part of your toolkit for automotive and electrical applications.