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LED Brake Lights and Turn Signal Lights

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LED Turn Signal Light Bulbs

Turn signal bulbs, also called indicator lights or blinkers, play an important role in your vehicle's lighting system. They signal when you plan to turn or change lanes so surrounding drivers and pedestrians understand your next move. When you activate the blinker, an electrical current reaches the bulb and causes it to illuminate.

If you want to replace dim incandescent bulbs, you can upgrade both your brake lights and turn signal bulbs with bright LED options. At Underground Lighting, we offer a wide selection of LED brake lights and LED turn signal bulbs that make your vehicle easier to see. Our team makes the replacement process simple and we guide you toward the best bulbs for your vehicle.

Advantages of LED Blinker Bulbs and LED Brake Lights

  • Superior Visibility

    High-output LED technology makes both your blinkers and brake lights stand out in every setting, from bright sunlight to nighttime driving. The sharp illumination helps other drivers notice your signals sooner, so they have more time to react.

  • Extended Lifespan

    LED blinker bulbs and LED brake lights last up to five times longer than traditional halogen options. Their durable design and efficient operation reduce the need for frequent replacements and keep your vehicle ready for the road.

  • Instant Response Time

    LED bulbs activate the moment you use them. Blinkers flash immediately and brake lights illuminate the second you press the pedal, giving surrounding drivers clearer feedback and stronger communication.

  • Energy Efficiency

    LED technology draws less power from your vehicle's electrical system while delivering brighter output. This improved efficiency reduces strain on your car's battery and electrical components.

  • Modern Styling

    The clean, crisp light output gives your vehicle a contemporary appearance. The distinctive illumination pattern sets your car apart while maintaining a professional, sophisticated look.

  • Weather Resistant

    These LED bulbs are built to perform reliably in all conditions and maintain consistent brightness in extreme temperatures and wet weather. Their sealed construction protects against moisture and debris for lasting durability.

How to Find Out Which Replacement Turn Signal Bulb or Brake Light Bulb You Need

Start by identifying your vehicle's specific bulb requirements to ensure compatibility and optimal performance.

Check your bulb number in three quick steps:

  1. Locate your current turn signal bulb or brake lightbulb, carefully remove it from the housing, and check the part number on its base. Common bulb sizes are 1156, 1157, 7440, 7443, 3157, and 3156. Each type has specific base configurations and electrical requirements that must match your vehicle's specifications.
  2. Enter your vehicle's year, make, and model into our fitment finder to verify the exact bulb you need. You can also check the maintenance section in your owner's manual.
  3. Choose your LED turn signal bulb or LED brake light bulb with confidence. Our Fit Guarantee ensures you'll receive the correct bulb that perfectly matches your vehicle's specifications.

Do you need help choosing the right LED light? Our customer service team is ready to help you identify the perfect LED brake light or turn signal bulb for your specific vehicle.

Are you looking for brake lights and turn signal bulbs for your vehicle? Use our vehicle part search today!

Frequently Asked Questions: LED Brake Lights and Turn Signal Lights

Will LED brake lights fit my vehicle?

Yes, most vehicles accept LED brake lights as long as you match the correct bulb size. Check your current bulb number to confirm the exact style your car uses.

Are LED brake lights brighter than stock bulbs?

Yes. LED brake lights create a stronger, clearer burst of light that often stands out faster to other drivers. This makes your signals easier to see in daylight, at night, and in poor weather.

Do LED brake lights need resistors?

Some vehicles need resistors when switching from incandescent to LED, especially if the electrical system expects a higher load. A resistor helps prevent rapid blinking or warning messages.

How long do LED brake lights usually last?

LED brake lights last far longer than standard bulbs. Many users see years of steady performance because LEDs run cooler and use energy much more efficiently.

How do you know which turn signal bulb is out?

When your turn signal starts blinking faster than normal (known as "hyper-flashing"), it usually indicates a burned-out bulb.
To identify which one isn't working properly, switch on your hazard lights and walk around your vehicle; the non-functioning bulb will be obvious. You can also activate your turn signals while parked next to a reflective surface like a wall or window, making it easy to spot which side isn't working.

Are all turn signal bulbs the same?

No, they are not all the same. Each vehicle uses different part numbers, which will vary by manufacturer. LED turn signal bulbs are the most popular choice when replacing factory-standard bulbs, as they project a brighter, longer-lasting, and more energy-efficient light.

Do turn signal LED bulbs need a resistor?

Most vehicles require one resistor per bulb when upgrading to LED bulbs. They need a resistor because they draw significantly less power than traditional bulbs, which can cause incorrect flash rates.
However, some LED bulbs, like our 3157 LEDs with built-in resistors, eliminate the need for separate installation. The advantages of 3157 LED turn signal bulbs with built-in resistors are easier installation and guaranteed proper operation without additional components.

Why is my blinker going twice as fast?

If you've noticed that your LED turn signal bulbs are flashing too fast, this is a signal from your vehicle that your blinker bulb(s) are going out and need to be replaced as soon as possible. Not only is the rapidly blinking light and noise annoying, but it is also a warning to you to take action as a responsible driver before you either receive a ticket or the bulb goes out completely, resulting in a possible roadside accident.

How do turn signal bulbs work?

When the driver activates the turn signal through the vehicle's controls, an electric current signals the bulb. This current flows through the filament (incandescent bulbs) or the semiconductor material (LED bulbs), generating light. A relay controls the flashing pattern, which causes the light to blink consistently.

How much does it cost to replace a blinker bulb?

The cost can be an immediate concern when it’s time to replace a failing or completely dead blinker bulb (or both!). However, longer-lasting, more energy-efficient turn signal bulbs that project the perfect amount of light output without casting a blinding glare on other drivers are well worth the investment. We have LED turn signal bulbs starting at $39.99 that burn brighter and last longer than other retailers.

What's the difference between switchback LED bulbs and regular LED turn signal lights?

Based on their design, switchback LED bulbs and regular LED turn signal lights have different functions. Switchback bulbs operate in two colors - white when the turn signal is off, functioning as a daytime running light, and amber-yellow when it's activated. Regular LED turn signal bulbs operate in a single color, illuminating only when the turn signal is engaged.

What are the best LED Lights for turn signals?

When you're choosing the best LED turn signal bulbs, look for bulbs that offer proper heat management, consistent light output, and appropriate beam patterns. Important features include durable construction, efficient cooling systems, and compatibility with your vehicle's electrical system. Consider factors like brightness levels, color accuracy, and whether you need anti hyper-flash.

How long do LED turn signal bulbs last?

LED turn signal bulbs typically operate for 30,000 to 50,000 hours under normal conditions. This extended lifespan means fewer replacements than traditional halogen bulbs, as LEDs are built to withstand vibration and varying weather conditions.
You can maintain your turn signal bulbs by keeping the housing clean and ensuring proper electrical connections. While they cost more initially, their durability and efficiency often make them a practical choice for many vehicles.

Should I choose LED or halogen lights for my car?

If you compare LED vs halogen bulbs, you’ll notice each type offers distinct characteristics for your vehicle lighting needs. Halogen bulbs provide traditional lighting performance at a lower initial cost, whereas LED bulbs deliver brighter illumination, operate more efficiently, and typically last significantly longer than halogens.
When making your choice, think about your regular driving conditions, budget requirements, and vehicle compatibility. Some vehicles may require additional components for LED installation, while others are designed for simple plug-and-play operation.

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