Custom Accessories Automotive Voltage Tester is an essential tool designed for locating short circuits, faulty head or tail lights, and bad fuses in your vehicle. This versatile tester can also be used as a timing light, making it a handy device for various automotive electrical troubleshooting tasks. The tester includes a bulb, an 18-inch test lead, and an insulated probe, ensuring ease of use and safety during testing. It operates within a voltage range of 6V to 12V, making it suitable for most automotive electrical systems. The product is conveniently packaged on a card for easy storage and access. Model Number: 46663