[Function]: Circuit tester for 6V-12V-24V DC systems, which can be used to detect power, ground and find shorts and breaks in wires [Long Spring Wire]: Long spring wire can stretch to about 220cm/ 86.6'', and the wire is enough thick so that the wire will not burn when the part temperature is increased [Tester Light Blub]: Light in handle glows when circuit connection is complete, and this 3 watt bulb is replaceable, you can change the bulb easily for long term use [High Quality]: The handle of the tester is made of plastic, and the steel probe is chrome plated which can easily pierce wire insulation to check circuitry [Wide Application]: Can be used for passenger car, RV, and even truck, a professional tool for detecting open circuit, fuse, tuning signal light, headlight, taillight, etc Specification: Color: Green Quantity: 1 Set Testing Range: DC 6V-12V-24V Tester Length: (Approx) 15cm/ 5.9" Cable Total Length (Stretch): 220cm/ 86.6" Package Weight: Approx. 59g Package Included: 1 x Tester 1 x Coil Cable (With clip) 1 x Test Light