
Works as expected. I set my phone to record the lights on video. Then I hope that all the lights (turn signals, running lights, brakes, etc.) in my truck are running. Watch the video to see which one isn't working, and then troubleshoot if it is. A voltmeter is also suitable for this, it is simply easier. It's a good idea to bring when buying an old used tow truck. So if the salesperson at the dealership says the trailer lights are working, you can immediately prove the opposite. Too bad he wasn't with me in the parking lot. Save me the trouble at home.

📏 Johnson Level and Tool 400EM-S 12-Inch Heavy Duty Metal Combination Square for Professionals, with Inch/Metric Measurements, Silver - 1 Square
8 Review

➕ Stainless Steel L-Square, Size 3-Inch x 4-Inch, Zona 37-434
8 Review

📏 CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review

Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review