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. PIAA bulbs are engineered with XTRA Technology for greater Performance per watt compared to the competition. XTRA Technology is achieved when a proprietary gas mixture is combined with an aerospace alloy filament that produces greater light output than its rated power consumption: i.e. 55W=110W
H3 XTreme White Plus Single Halogen Bulb installation instructions
I put these on my light bar for my Honda 1100 and they make it much easier to see the road at night. An added benefit is during that day when the lamps are not needed the blue tint of the bulbs, while off, catch peoples eyes as they reflect within the lamp housing. The 35W drain per bulb is also nice that it does not over burden the motors alternator and still leaves me capacity for heated riding gear for colder weather.
I really like the lights, but somewhat disappointed that they do not last very long. I only get 1 to 2 years out of them. And I don't use them very much.