Here's the funny thing... I'd been buying high-end "bright white" halogen bulbs every time the headlight burned out. The last time it burned out, I was on the road and stopped at a gas station. I bought a generic H4 bulb (can't even remember the brand name) and not only was it bright enough, it's been burning bright for the past three years and nearly 20,000 miles. Sometimes you DON'T get what you pay for...