Tube-style shift light, with innovative AIM swivel mount for precise viewing angles. Features single programmable digital shift point, digital RPM display, compatible with 0.5 to 6 pulse ignition signals (1 to 12 cylinder engines), and single color shift light. Tube Style Shift Light, With Innovative AIM Swivel Mount For Precise Viewing Angles Single Programmable Digital Shift Point, Digital RPM Display Compatible With 0.5 To 6 Pulse Ignition Signals (4 To 12 Cylinder Engines), And Single Color Shift Light Features Single Programmable Digital Shift Point, Adjustable By 10 RPM Increments To Optimize Use Of Your Engine's Power Band And Improve Vehicle Run Performance Features Single Color Shift Light With Adjustable Brightness Settings For Daytime And Nighttime Driving Or Changes In Visibility Conditions E-Z View Digital LED Display System Which Maximizes Readability And Minimizes Distracting High Speed Digit Changes Limited 12 Month Warranty