Free Shipping on all order over $89.99

LED Conversion Kits & Premium LED Headlight Bulbs for Cars and Trucks

View as

Plug-and-Play LED Headlight Conversion Kits & Headlight Bulbs Using Solid-State Light Technology

Underground Lighting's collection of LED headlight conversion kits and LED headlight bulbs is exclusively designed to replace factory halogen headlamps in cars, SUVs, and trucks. All products use solid-state LED technology, where light is generated through electroluminescence at a semiconductor p-n junction, eliminating filaments and gas-based arc systems.

The LEDs used in these kits are built with SMD, or high-power automotive-grade chips, selected for compact size and controlled output. Typical systems deliver 6,000–12,000 lumens per pair while drawing 40–60 watts, producing a 6000K pure white colour temperature that closely matches daylight, resulting in 3–5× higher usable brightness with lower power demand.

Explore the best aftermarket LED headlight bulbs and plug-and-play LED headlight kits This collection is built around the most widely used automotive bulb standards:

For vehicles equipped with electronic bulb monitoring, CANbus-compatible LED headlight kits are included to prevent dashboard errors, flicker, or shutdown. Thermal stability is managed using integrated heat sinks or active cooling, which is essential in high-output LED systems to maintain beam consistency and housing safety.

Within the broader lighting ecosystem, these LED headlight upgrades naturally connect with LED fog lights, LED turn signal bulbs, and anti-flicker CANbus modules, forming a complete exterior lighting solution. Compared to HID (xenon) systems, LEDs provide instant full brightness, longer service life, and reduced system complexity, while requiring proper beam focus to remain DOT/SAE compliant.

Popular applications include Jeep headlights, Ram 1500 headlights, 2014 Ram 1500 headlights, and 2014 Silverado headlights, where higher light output and vibration resistance are essential for daily driving and truck use.

Why Choose Underground Lighting LED Headlight Conversion Kits

  • 3–5× Higher Brightness Than Halogen Headlights

    LED headlight kits produce 6,000–12,000 lumens per pair, compared to 1,200–1,500 lumens from halogen bulbs, improving forward visibility and hazard detection.

  • 25,000–50,000+ Hour Operating Lifespan

    Solid-state LED construction eliminates filaments, extending service life to 25,000–50,000 hours, far exceeding halogen (400–1,000 hours) and HID (2,000–3,000 hours).

  • Instant Full Brightness With Zero Warm-Up

    LED headlights reach 100% output immediately, unlike HID systems that require warm-up time, improving response during night driving and signalling.

  • Lower Power Draw With Higher Energy Efficiency

    Operating at 40–60W per pair, LED conversion kits consume less power than halogen or HID while producing more usable light, reducing electrical system load.

  • High Durability for Trucks and Off-Road Use

    LED bulbs are shock- and vibration-resistant, with no fragile filament, making them suitable for trucks, SUVs, and rough-road driving conditions.

  • Error-Free Plug-and-Play Compatibility

    CANbus-compatible LED kits prevent flicker and warning messages in modern vehicles, while plug-and-play connectors allow DIY installation without permanent modifications.

How to Find Out Which Headlight Conversion Kit I Need

Finding the right LED headlight kit for your vehicle is quick and straightforward with our easy three-step process:

  1. Check your current headlight bulb size by removing the existing bulb and looking for the part number on its base. Common sizes include H11, 9005, or 9006.
  2. Use our vehicle finder tool to confirm the exact fitment for your make and model. Can't locate your bulb size? Your owner's manual lists this information under "replacement bulbs" or "light specifications."
  3. Choose your LED headlight kit with confidence. Our fit guarantee ensures you'll always receive the perfect kit for your vehicle.

Need help finding the right LED headlight kit? Our lighting experts are ready to help – just call, email, or chat with us today.

Find conversion kits for your make and model from your leading LED headlight suppliers. Use our vehicle search tool today!

Vehicle Part Search

Auto LED Headlight Conversion Kit FAQs

Auto LED Headlight Conversion Kit FAQs

If your vehicle came with halogen headlights, you'll need a conversion kit to upgrade to LED. These kits work with your vehicle's existing headlight housing for optimal light output and beam pattern.

LED headlight bulbs are legal for road use when properly installed in compatible housings and aimed correctly. Our LED conversion kits are engineered to provide DOT-compliant beam patterns that maximize visibility without creating dangerous glare for other drivers. While regulations can vary by state, our kits meet federal safety standards. We recommend checking your local regulations for any specific requirements in your area.

Converting to LED headlights is a cost-effective upgrade when you consider the long-term benefits. While the initial investment is higher than traditional halogen bulbs, LED conversion kits pay for themselves through extended lifespan, reduced power consumption, and minimal maintenance.

Our kits are competitively priced to provide maximum value, with options for different budgets and performance needs. Factor in the improved safety and modern appearance, and LED headlights become a smart investment in your vehicle.

Installing LED headlight conversion kits is a straightforward process that most people can complete in under 30 minutes. Here's what to expect:

  1. Access your existing headlight bulbs (check your owner's manual for location)
  2. Remove the old halogen bulbs
  3. Install your new LED bulbs
  4. Connect the LED drivers (power adapters)
  5. Test your new lights

If you experience headlight flickering or error messages, you may need a load resistor to quickly resolve these issues. Every kit comes with detailed instructions, and our support team is ready to help if you need assistance.

When you're on the road in bad weather or in low visibility conditions, like extremely foggy or dark surroundings, bright white headlights are definitely safer than dull, yellow Halogen lights. Not only do efficient, environmentally friendly LED bulbs look clearer and brighter, but they also do a much better job of illuminating the roadway for all drivers in the area.

Whether driving solo or transporting precious cargo, it is important to feel safe, secure, and fully aware of your surroundings when you are on the road. If you're deciding between yellow vs white fog lights, LED lights provide added security and peace of mind that make them well worth the purchase. 

While LED conversion kits work with most vehicles, compatibility depends on your specific make and model. Some vehicles may require additional components for proper operation. Use our vehicle finder tool so we can check compatibility and get the exact kit designed for your car or truck. We make sure you'll receive the right bulb type and any necessary accessories for a successful upgrade.

Yes! Replacing your outdated, dull, and dim Halogen headlight bulbs is easy when you use one of our LED bulbs. Our simple, fast “plug and play” installs can be done by just about anyone, and our wide varieties of LED bulbs are compatible with most makes and models, including some after-market vehicles. Reach out to us today, and we can help you choose the right LED bulbs in no time.

While LED headlights typically use 20-40 watts, they produce more light per watt than traditional bulbs. The key is lumens (brightness) and beam pattern rather than power consumption. Our LED conversion kits provide maximum visibility and performance while drawing less power than standard halogen bulbs.

Our LED conversion kits deliver optimal brightness while maintaining a focused beam pattern that won't blind other drivers. Higher lumen ratings must be balanced with proper light distribution and cutoff. Some of our kits produce up to 10,000 lumens per bulb, providing exceptional visibility without creating dangerous glare. When choosing an LED kit, think about both brightness and beam pattern quality for the safest lighting upgrade.

While searching for a good-quality LED headlight kit or any other LED kit for changing fog lights or daytime running lamps, make sure you pick the right product for your vehicle. High-powered LEDs need a stable way to cool down; if they don't, they can cause heating issues. 

Another key factor is the placement of the LED chips, as this can determine the light output pattern. Shopping online can get confusing with the sheer number of sellers and LED lighting kits available, but here at Underground Lighting, all of our LEDs are made to last and have the best light patterns to help you see. 

No! Yet another perk of using LED headlight bulbs is how versatile, compatible, and easy to install they are for your vehicle. Give your car or truck an instant boost with "plug and play" installation, meaning virtually anyone can switch their bulbs out and be ready to shine brightly in as little as ten minutes.

No, you can't, as there is a difference between HID and LED conversion kits. If the vehicle comes with factory HIDs, you cannot convert to LED without heavy modifications, and the visibility with LED will be worse than the HID. If you're unsure what you need or how to install HID headlight bulbs, contact one of our representatives today. 

LED bulbs are a better choice than Halogen bulbs in foggy conditions because they project an unmatched bright, white illumination output. Also, LED fog light bulbs last longer and, therefore, are more dependable. The last thing you want when you're on the road in less-than-ideal circumstances is limited visibility, which presents a potentially dangerous situation for everyone involved.

Back to top

Compare /3