[Powerful Ignition Timing Light]The timing light can intuitively detect the ignition timing scale on the engine flywheel or pulley to make appropriate adjustments.It can detect the automotive knock suppression control system and vacuum advance angle control system, and change the advance angle as the speed changes.Timing light is suitable for automobiles, motorcycles, ATVs, , boats and all twostroke or fourstroke gasoline engines.It works on 12V ignition . speed is up to 1000rpm.[Why You Need Timing Lights]Under the longterm normal wear and tear of the engine, the timing belt and pulley are regularly replaced, and the cylinder pressure , so the ignition timing needs to be readjusted to improve engine performance and efficiency. Timing light automotive can be used to record timing changes due to ignition system failure or resetting timing when vehicle components are changed.[Strong Flash Timing Light with Sliding Sensor Clip&Long Test Lead]The bulb used in timing light produces a very strong flash so that the timing marks on the engine can be viewed in bright light or even in sunlight, which is very convenient to adjust the ignition timing. The spark plug sensor clip is a sliding clip design for easy and safe hookup of the high voltage line of the No.1 cylinder. The test lead is 4.54FT long, which allows you to test the whole ignition system .[Durable Timing Light with Ergonomic Handle&Strong Bite Clips]The handle of the timing light is ergonomically designed, handle shape and button are comfortable for easy operation. The shell of timing light is made of high quality ABS material, which is impactresistant, not easy to wear and durable. The metal alligator clips are covered with rubberized sleeve protector for safety. And the clips with strong bite force are not easy to fall off.[Polarity ReverseConnection Protection&Overload Protection]Timing light is deigned with polarity reverse connection protection. It will prevent the from damaging the device or affecting the car or battery in the event of operation. Timing light also has overload protection. If the current or load is too during the operation, timing light will automatically disconnect the current to protect the battery and device.[Easy Operation]Clamp the red clip to the positive terminal of the vehicle's battery. Clamp the black clip to the negative terminal. Hook up the spark plug sensor clip to the high voltage line of the No.1 cylinder. Note: The on the sensor clip should point to the direction of the spark plug to work properly. It also can work on 6volt electrical , you just need auxiliary 12V battery to power the timing light.Colour:blackMaterial:plasticPackage Contents:1 * Timing LightOnly 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 +/ 13cm.