PIAA H4 XTreme White Plus Bulb Xtreme White Plus is PIAA’s best-selling technology. These bulbs will provide a brilliant Xtreme cool white light that will light up road hazards and street signs long before a normal halogen bulb. Xtreme White Plus bulbs are engineered for sustained performance in applications where a high level of vibration and moisture protection is required. Features: Xtra technology produces a white 4000K color that provides better contrast and depth perception allowing riders to see farther Manufactured to DOT specifications One-piece filament and heat-resistant quartz glass ensures dependable, consistent performance Xtreme white color output with crisp illumination for the HID look Sold each
