1Wide Application: The circuit test light has a testing range of 6?48V Dc voltage, making it ideal for checking the circuits of various vehicles and mowers. It can quickly check car headlights, taillights, turn signal circuit, etc. 2Reliable Pcb Display: The high visibility display screen indicates the circuit signal, and the digital screen varies with the measured voltage, bring you excellent visual experience. 3Unidirectional Voltmeter Display: You can connect the clip to the negative or positive ground while using the probe to touch the other side. The LED will display red or green, but the voltmeter only displays one direction. 4Quality Manufacturing: The stainless steel probe is used to pierce wires and is also suitable for hard to arrive narrow areas. The insulated protective rubber head protects you from electric shock. Pu spring wire is heat insulated, oil resistant, and safe to use. 5Easy to Use: The wire is more flexible, lightweight, and durable than ordinary cables, making it convenient to use and store. Combined with the large sized clip, it is easy to operate with one hand, significantly improving your work efficiency.