This product has revolutionized the way I handle my car's electrical wiring.After I put it TO the test, I can say that it is an industrial and scientific masterpiece. The alligator clips hold up to high amperage without any issues making my life so much easier! The best part? The connectors fit perfectly into a cigarette lighter socket. However, the only downside is that the clips may not fit into all sockets due to varying sizes. Overall, a must-have for any DIY car enthusiast..