Xtreme White Plus H4 Bulbs
The very popular PIAA Xtreme White Plus technology H4 bulbs are also 9003 bulbs.
Rated at 4150K and providing 110watts of light from only 60 watt current drain these bulbs will provide a brilliant Xtreme white light that will light up road hazards and street signs long before a normal halogen bulb. The Blue topcoat on these bulbs adds a slight blue tint to the lamp for enhanced curb appeal.
The H4 is a dual filament bulb one filament for the low beam and one filament for the high beam.