This AutoMeter 4491 Ultra-Lite 2-5/8” Voltmeter gauge has incandescent lighting to provide visibility during nighttime use. This gauge is 12 and 16 volt compatible and is 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, gauge bracket kit #3245 and detailed instructions for installation. AutoMeter 4491 Ultra-Lite 2-5/8” Voltmeter Gauge Features: Gauge Diameter: 2-5/8 in. Gauge Style: Analog Sending Unit: Electrical Gauge Range: 8-18 Volts Gauge Face Color: Silver Gauge Number Color: Black Pointer Color: Red Bezel Color: Silver Illuminated: Yes Liquid Filled: No Sending Unit Included: No Quantity: Sold Individually AutoMeter offers a variety of Ultra-Lite gauges to monitor your vehicle’s data, and they are available in the range as well as size to perfectly fit your ride. When you're serious about performance, trust AutoMeter gauges!