- LED Indicator Feature : This trailer wiring tester features six bright LEDs, each clearly labeled for effortless use. Easily identify the status of your vehicle's lighting system at a glance. - Comprehensive Testing Function : Designed to efficiently test all essential circuits, including tail lights, brake lights, reverse lights, left turn signals, right turn signals, and auxiliary power. It ensures that critical lighting components are functioning correctly for safe towing. - User-Friendly Operation : Simply plug the tester into the bumper connection, activate the lights to be tested, and monitor the LEDs for quick and accurate results. The straightforward operation allows for hassle-free diagnostics. - Clear Identification of Functions : Each indicator light is distinctly marked, enabling you to determine which specific vehicle lights are operational. This clarity reduces confusion and saves time during troubleshooting. - Versatile Applications : Perfect for use by DIY enthusiasts, professional mechanics, and fleet managers. Ideal for ensuring that all trailer lighting is functional before hitting the road. Whether preparing for a weekend getaway or conducting regular maintenance checks, this tool guarantees safe and reliable towing. - Robust Design and Compatibility : Built for durability with high-quality materials, this tester is compatible with various trailer sizes and configurations, making it an essential tool for any vehicle owner. Prioritize safety and efficiency in your towing experience with this essential trailer wiring tester. It provides peace of mind and ensures compliance with road safety standards.