Piaa H8 XTreme White Plus Bulb Features: Piaa Powersports bulbs are engineered with Xtra Technology for greater performance per watt than any other bulb on the road (Xtra is a term coined by Piaa to designate a high-efficiency bulb that is designed to produce greater light output than its rated power consumption, i.e. 35w of consumption 70w of light output) Greatly enhance your ability to see and be seen A metal bond holds the heat-resistant glass tube securely to prevent cracks and leaks A welded focus ring and one-piece filament support assures proper positioning Piaa Xtreme White Bulbs have a cool white light output that gives the driver better color recognition on depth perception and better contrast than stock halogen headlights The blue top-coat on these bulbs adds a light blue tint to a lamp with no loss of performance