A website touting the Sylvania SilverStar headlight bulb says it provides "up to 30 percent" greater visibility down the road. That sounds impressive until you read the fine print: "compared with ...

Bulbs that take 0 to 15 seconds to reach near ... and over 63 seconds scored poor. The Sylvania Ultra-LED 100W LED20A21/DIM/0/827 is part of the Lightbulbs test program at Consumer Reports.

The red gaskets in our new bulbs were thicker and stiffer than the Sylvania Silverstar bulbs we replaced, so they needed a very firm push on the aluminum heat sink. Our bulbs came with additional ...

Both of these bulb types lose light output over time ... When you want a simple replacement halogen, familiar brands like ...