Not to bust anyone's bubble, but
and if you look on the silverstar website this is what they put at the bottom of there adverts.
The brightest halogen headlight on the market.
Just how bright are SYLVANIA SilverStar® ULTRA bulbs? By providing up to 50% greater brightness*, they can increase visibility down the road by up to 40%*, and peripheral visibility by up to 50%.*
*Compared to worn standard halogen
Don't you love Marketing.