PIAA 1156 XTREME WHITE BULB SINGLE FILAMENT Match these bulbs to both headlights and other accessory lights for a sleek, uniform appearance. These bulbs are used for turn signals and stop lights to make you more visible for a safer and more enjoyable ride. Single Filament. Technology: Xtreme White Bulb Type: 1156 Wattage: 27W Color Temp: 4150 Kelvin Twin Pack