There is plenty of false advertising in the lighting biz...assuming it's true just 'cause you read it on the package (or saw it on TV or read it on the internet, etc.) is a good way to set you up for wasting a lot of money. The silver star bulbs put out less light, not more than a standard bulb. Same goes for all of the so-called "whiter light" bulbs, they all use a colored glass to change the light color. This makes it dimmer because the filter absorbs (blocks) some of the light that would otherwise exit the headlamp and project forward to light things up for you. The "improvement" from these tinted bulbs is an optical illusion.
Putting an "HID kit" (Xenon burners) into halogen headlamps is a very bad idea. It's illegal and dangerous. See
here for details.
Someone here might be able to make specific recommendations if you were to say what kind of vehicle you're trying to upgrade...in the meantime, you should read
this thread.
