Stock halogen headlight bulbs dim noticeably over years of use, and a lot of drivers don’t realize how much brighter a fresh, quality bulb can be until they finally replace one that’s been degrading gradually for years. Brightness, beam pattern, and DOT-legal status all vary between brands, and choosing a street-legal halogen upgrade is a meaningfully different decision than shopping for aftermarket HID or LED conversion kits.

These six halogen bulbs are worth checking when your night driving visibility has gotten noticeably worse.

Sylvania SilverStar Ultra

Sylvania’s SilverStar Ultra is one of the most established names in upgraded halogen bulbs, sold on longer downroad reach and a whiter light than a standard factory bulb. Sylvania calls SilverStar Ultra its brightest downroad halogen headlight, credits a cobalt blue and tri-band coating for the whiter light, and states that the bulb complies with DOT regulations and SAE standards. Because it is a direct replacement for a factory halogen bulb, it avoids the wiring changes and legal questions that come with an aftermarket HID or LED kit.

Know two things before you buy. The first is the tradeoff. Sylvania’s own product FAQ says a brighter bulb will have a shorter overall life, so expect to replace these sooner than basic bulbs. The second is handling. Sylvania says never to touch the glass during installation and to use gloves or a clean shop towel so skin oil does not transfer to the bulb. Replace both sides together, since two bulbs installed at the same time wear at the same rate.

Philips X-tremeVision

Philips’ X-tremeVision line is the bulb most often cross-shopped against SilverStar Ultra. Philips has a long history in automotive lighting, including supplying original-equipment lighting to automakers, which gives the line a pedigree beyond aftermarket retail. Like SilverStar Ultra, it is a halogen bulb that fits the factory socket, so there is no wiring or housing modification involved.

Read the headline claim carefully. Philips says X-tremeVision delivers up to 100% more vision, and the comparison is with the standard minimum legal requirements in low beam tests, not with the bulb already in your car. The real-world gain over a healthy stock bulb will be smaller than the number suggests. Philips also recommends replacing headlights in pairs, because older bulbs produce less light over time. Check your owner’s manual for the bulb number before ordering, since low beams and high beams often use different types. After installing, make sure each bulb is fully seated and locked. A bulb that sits crooked scatters light and creates glare for oncoming drivers.

GE Nighthawk

GE’s Nighthawk halogen line is known as a value-oriented alternative to the premium bulbs from Sylvania and Philips, offering an improvement over a basic replacement bulb for drivers who do not want to pay for the brightest option on the shelf. GE has a long history in lighting, and the Nighthawk name has been around in the bulb aisle for years.

A mid-priced bulb makes the most sense when your current bulbs are simply old. Sylvania’s FAQ says headlight bulbs can lose up to 50 feet of visibility before they burn out, so any fresh bulb recovers light you may not have noticed losing. Before you buy, look at the lenses. If the plastic is yellowed or hazy, no bulb will fix the problem, and a lens restoration kit or a professional polish should come first. Check that both headlights are aimed correctly as well, especially if one side lights the road noticeably lower than the other. New bulbs in a clouded or misaimed housing are money wasted.

PIAA

PIAA, better known for auxiliary lights and wiper blades, also makes halogen headlight bulbs aimed at drivers who want a whiter light than the yellowish tint of a basic stock bulb. The bulbs sit at a premium price, in line with the brand’s positioning in performance lighting. For import car enthusiasts who already trust PIAA for other products, they are a natural brand-consistent choice.

Keep in mind that whiter is not the same as brighter. A tinted coating changes the color of the light, which many drivers find crisper on dry pavement, but color alone does not put more light on the road. Judge a bulb by how far and how evenly it lights the lane, not by how white it looks from the front of the car. Stay with the wattage your vehicle was designed for, too. A higher-wattage bulb draws more current and runs hotter than the factory wiring, connector, and housing were built to handle, and the result can be a melted connector instead of better vision.

OSRAM Night Breaker

OSRAM’s Night Breaker is one of the best-known names in upgraded halogen bulbs internationally. Like Philips, OSRAM has a long history in automotive lighting, including original-equipment supply, which gives the line comparable manufacturing credibility. It is a common cross-shop against Sylvania and Philips for drivers comparing upgraded halogens.

The family comes in tiers. OSRAM’s halogen headlight range lists Night Breaker 200 at up to 200% more light, Night Breaker Laser at up to 150%, and Night Breaker Silver at up to 100%. Each figure is measured against the minimum legal requirements, not against a typical new bulb, so use the numbers to rank the tiers and not to predict what you will see on the road. Keep in mind the rule that applies to every performance halogen: the brightest tier is usually the shortest-lived. If you are buying for a U.S.-market vehicle, check that the package carries DOT markings, since these bulbs are sold in many countries with different approval rules.

Sylvania SilverStar (standard)

Sylvania’s standard SilverStar, distinct from the higher-tier SilverStar Ultra, offers a more modest brightness and color upgrade over a basic bulb at a lower price, making it a reasonable entry-level step. Sylvania’s own side-by-side comparison makes the ladder easy to see. For the common H11 size, it lists a two-pack of XtraVision at $43.99, SilverStar at $53.99, and SilverStar Ultra at $63.99, all with a 12-month warranty. Sylvania describes SilverStar as giving brighter downroad light with a blue coating for a whiter appearance, and reserves its “brightest downroad” claim for Ultra.

With ten dollars between each tier, the decision comes down to how you drive. If most of your night miles are on lit city streets, the standard SilverStar or even XtraVision is enough. If you regularly drive unlit rural roads, the extra reach of Ultra is easier to justify. Whichever halogen you pick, stay with halogen. Sylvania’s FAQ notes that current federal law prohibits replacing halogen low and high beam bulbs with LEDs.