This is a DEMO of a DIY 18 LED, 19 Stage Sequential Shift Light I built for my Miata. I purposely set the shift light to start at 1000 RPM and end a 4000 RPM for DEMO purposes only so I wouldn't have to rev my engine so high for the video. In race applications I have it set to 5000 - 7000 RPM. I also have a dimmer knob so I can turn it down or off for street and night time driving.