Abstract: A jumper cable assembly is disclosed comprising two insulated electrical cables and terminal clamps at both ends of the cables. Each terminal clamp comprise a handle section, a jaw section, a pivot section joining the handle section with the jaw section, a means of locking and releasing the jaws section closed, and a lighting element which automatically turns on when the jaw section is opened. This jumper cable assembly is able to securely lock onto a battery terminal or chassis and provides illumination for attaching the jumper cables.