Accurate ignition light is necessary for gasoline engines to achieve fuel-economy and performance. The engine to 9000 RPM and ignition advance from 0-90.The timing light is designed for precise tuning and diagnostic work, adopting high strength ABS material shell and 60 inch inductive pick-up leads, operate on 12V ignition .The ignition timing light professinally sets initial and advance timing in order to obtain timing and performance.With high brightness linear flash tube and a visible LED display, simple and convenient to operate. Pushbutton control to adjust advance and switch between 4 and 2 engines.The sensor clip is red and black to distinguish positive and negative poles, simple to use and more .Type: Timing LightInput Voltage: 12VSpeed: Accurate to 9000 rpmLED Display: Supportsize:Power Leads Length: 60 inchMaterial:ABScolour:Black+greyPackage Contents:1 x Timing Light1 x ENGLISH manual