AutoMeter 3990 Sport-Comp In-Dash Electric Tachometer

Traditional incandescent lighting illuminates around the perimeter of the dial Compatible with 2 - 4 pulse ignition signals (4-8 cylinder engines) with points, electronic, and most 12V high-performance racing ignitions. 12 and 16 volt compatible, well-suited with nearly every street car or race car electrical system Gauge kit includes bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation