Upgraded: This test light has Insulation protective rubber tip protects you against stab wounds while in storage. Also has testing range(3-60V), higher than most test light on market. Easy to Use: Bidirectional Voltage Testing design allows you attach the alligator clamp either to negative or positive. (Red light: Positive, Green light: Negative.) perfect to check vehicles electrical circuits automotive battery, circuit integrity and other 3-60 volt wiring and circuits. Easy to Read: Our electric test pen has a large LCD digital display which is easy to read in both daylight and darkness because it has a light. Design with a stretchable long cable and probe which makes it easy to get into those hard to diagnose areas. Rugged: Heavy duty circuit tester body constructed with high quality ABS, shatter-proof, more than normal test lights. LED circuits board with micro-current than traditional test lights, more secure. Confident Buying: The test light is a great addition to a mechanics tool box. You will find what a great makes trouble easy. Widely Application: for checking vehicles electrical circuits, quickly check automotive headlights, taillights, turn signal circuits, faulty sockets, fuse connections, or for testing other 3-60V DC wirings and circuits. Colour: orange + transparent color Material: plastic + metal Package Contents: 1 * Automotive Test Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.