Test light/circuit tester

A test light tool for indicating the electrical potential of a test surface of a vehicle D.C. electrical circuit, comprising:

• a handheld tool body;
• first, second and third light emitting diodes (LEDs) disposed within the tool body;
• an indicator circuit connected to the LEDs, the indicator circuit having an operating range defined by a rated voltage;
• first and second connectors, each of the connectors having a first end connectable to the indicator circuit and a second end connectable to one of the first and second connection surfaces of the vehicle electrical circuit;
• and
• a probe having a first end in electrical communication with the indicator circuit and a second end extending from the tool body and engagable to the test surface;
• a high voltage protection circuit in electrical communication with the indicator circuit for limiting the voltage across the indicator circuit in the event that the probe is placed in electrical communication with a surface having a voltage greater than the rated voltage of the indicator circuit;
• the indicator circuit being operative to illuminate the first LED when the when the first and second connection surfaces have an electrical differential therebetween sufficient to power the indicator circuit;
• and
• the indicator circuit further being operative to selectively illuminate one of the second and third LEDs when the probe tip is engaged to the test surface.