Diode Dynamics H11 SL1 LED Headlight Set of 4

Aftermarket or OEM? If you're looking to improve visibility on your vehicle at night, you've probably found many options for LED upgrades. Most bulbs on the market are too big to install, don't work with the electrical system, and have no focus or hotspot in the beam pattern. Even if they come close on those aspects, they still aren't anything close to the quality you would find with factory-installed lighting. Like most aftermarket products, most LED bulbs are not engineered and tested for long-term reliability.

With the SL1 LED, Diode Dynamics set out to engineer a true OEM-grade solution. With its compact size, optically correct output, flow-simulated cooling, and boost-mode electrical circuit, our SL1 LED patented design is a properly-engineered solution that finally provides a true upgrade in performance, with high reliability: and it's tested and validated to meet those standards, just like OEM lighting.

Compact Size. Your order includes two bulbs, to replace the factory bulbs in your vehicle. The bulbs are compact in size, in a patented design that isn't much bigger than the original halogen bulb. The drivers are compact too! If you have a sealed headlamp, they are designed to fit inside. The drivers and bulbs are tested to last over time, even when sealed inside with the heat of the headlamp. Please note that if you are replacing a high beam / DRL bulb, the DRL function may no longer work, depending on your vehicle. Please see further information on Vehicle-Specific product listings, or contact us.

Street Legal Output. Don't be fooled by high lumen numbers or projector specific bulbs. Your vehicle's headlights are designed as a system, to focus light. If the light source in that system is out of focus, it doesn't matter how bright it is. You won't have a focused hotspot of light to shine down the road, you'll just have more glare. To correct this, the SL1 LED headlight bulb was engineered with advanced optical design software, which simulates each ray of light in a process known as ray tracing. Using this tool, our engineers perfectly matched the filament location, allowing the SL1 LED to focus light just like your original bulb, preserving the focus and hotspot, with no added glare. It produces a functional pattern on the road, with a stronger hotspot for added distance. This is a safe, functional output, in compliance with photometric standards, which we call Street Legal.

Daytime Running Light. Daytime Running Lights (DRLs) are lights that illuminate when the vehicle is running, and when all other lights are turned off. Some vehicles use the high beam bulb as the daytime running light. If your vehicle uses voltage drop for the DRL signal, the SL1 will operate at full brightness. If your vehicle uses PWM for the DRL signal, the SL1 will operate at a reduced brightness level just like your factory halogen bulb would.

Tested to Perform. We test the SL1 bulb in factory headlamps, and measure the entire beam pattern using specialized equipment. It's an elaborate affair: a headlight is mounted to a computer-controlled rotating head called a goniometer. Light shines down a tunnel, where a sensor collects data as the headlight is rotated. The entire beam pattern is mapped, and we compare the total output to the original halogen, confirming that the SL1 bulb shines more light in the hotspot, without adding extra glare on the road. The test results speak for themselves: in most lamps, like the 2015 F-150 Halogen lamp, there is 30-70 percent more light in the critical hotspot, with no added glare or spread of light. With proper optical engineering, testing, and validation in the application, we can assure correct optical performance.

Staying Cool. You may have seen bulbs that use large straps for cooling, or big fans that just make noise. These bulbs still run hot, pushing the LEDs past their limits, resulting in degradation of output after a few months. When it comes to cooling, proper engineering is required to efficiently remove heat from the bulb. In the SL1, it comes together as a whole system that was extensively tested, with dozens of iterations to achieve the best cooling performance possible. It includes a direct-solder copper core board, thermal phase-change interface material, and thermally-modeled zinc casting get heat to the base, where base fins are designed for aerodynamic performance in conjunction with the flow rate and pressure of the Sunon bearingless microfan. The result is a highly-effective and reliable cooling system, keeping the bulb running at maximum potential.

Fitment. With its patented design, the SL1 LED fits where other bulbs won't, without cutting or modification. There's no hanging metal straps, just a compact bulb that plugs right in, with an exclusive reinforced shroud to keep the heat off any other components or wiring. Only slightly larger than a standard halogen bulb, it fits behind dust caps and in tight spaces. The driver and bulb are tested to function when sealed inside the headlamp - no worries about heat buildup! The base sizes on the bulb are also are keyed for exact applications, not one-size-fits-all, and the compact driver easily tucks away.

Driven. Rather than a simple buck regulator found on other bulbs, the SL1 uses a unique boost-mode circuit, which prevents thermal imbalance in the LEDs over time - again, just like you would find in OEM LEDs. It also has transient protection for long life in automotive circuits. Diode Dynamics engineers also analyzed dozens of OEM electrical systems, and added current-monitoring circuitry to mimic the electrical characteristic of halogen bulbs, drastically reducing the need for CAN-BUS adapters (though they're still needed on some applications).

Reliability. Every part of the SL1 LED was designed for reliability, from the custom wiring with strain reliefs and solderless terminals, to the exclusive zinc castings, to the reinforced high-temperature PP-GF plastics (the same used in halogen bulb bases). Each component was designed and tested, with dozens of variations of each component reviewed until we achieved the maximum performance possible. Finally, the SL1 was put through its paces in our environmental testing chambers - where the bulb successfully performed through dozens of thermal cycles, from -40 through 85 degrees Celsius (-40 to 185F). Whether you're in the Sahara or northern Canada, the SL1 will keep performing for years, and is backed by a three year warranty.
Experience. After over a decade in business, Diode Dynamics is one of the most trusted names in automotive LED lighting. We directly manufacture and engineer our own products in the United States, allowing for higher quality and performance, with the newest and brightest LED technology. No matter what you're driving, we pride ourselves in offering only the best possible LED solutions.
Features

• H11 SL1 LED Headlight Set of 4
• Low or high beam LED headlight replacement
• Correct optical focus for increased output with no added glare
• Perfect H11 fitment, no modification needed
• Designed and validated to OEM lighting standards
• Engineered and Manufactured in USA

What's Included

• Quantity: Single or Pair
• Warranty: 3 year warranty
• Return Policy: 30-day Return with no restocking fee
• 100 percent Satisfaction Guarantee

Fitment

• Bulb Size: H11
• DRL Function: Operates at full brightness for DRL

Specifications

• Measured Lumens: 1630 (per bulb)
• Color Temp (CCT): 5700K
• Power (watts): 20.2
• Operating Voltage: 5-16V
• Current (amps at 13.2V): 1.58
• Polarity: Polarity Specific
• Operating Temperature: -40C to 85C (-40F to 185F)
• LED Emitter: Luxeon Z ES
• Connector(s): OEM-Size Plug and Play
• Driver Features: External, Waterproof, Constant Current
• Driver Dimensions: 2.19 Inch x 1.13 Inch x 0.56 Inch
• Materials: Copper PCB, PP-TD30 Base, Zinc Heatsink
• Cooling: Active, Mag-Lev Microfan
• Compliance Ratings: FMVSS108 Beam Pattern, SAE J575 Durability Test
• Patent: US D824052

Fitment:
1996-2005 Honda Civic
2000-2002 BMW Z3
2000-2005 Buick LeSabre
2000-2005 Buick Park Avenue
2000-2004 Buick Regal
2000-2005 Buick Century
2000-2005 Cadillac DeVille
2000-2004 Cadillac Seville
2000-2006 Lincoln LS
2000-2002 Cadillac Eldorado
2002-2013 BMW X5
2002-2007 Buick Rendezvous
2002-2004 Acura RSX
2002-2006 BMW 330i
2002-2006 BMW 325i
2003-2006 Chevrolet SSR
2003-2009 Lexus GX470
2003-2016 Mitsubishi Lancer
2003-2008 BMW Z4
2003-2008 Mini Cooper
2003-2005 Lincoln Aviator
2003-2005 Pontiac Sunfire
2003-2014 Lincoln Navigator
2004-2009 Nissan Quest
2004-2005 Acura EL
2004-2010 BMW X3
2004-2006 Mazda MPV
2004-2008 Toyota Solara
2004-2006 Lexus RX330
2004-2010 Volkswagen Touareg
2004-2006 Volkswagen Phaeton
2004-2006 Pontiac GTO
2004-2008 Mazda RX-8
2004-2019 Nissan Sentra
2004-2007 Buick Rainier
2004-2014 Acura TSX
2004-2013 Acura MDX
2004-2016 Chevrolet Malibu
2004-2006 Mazda 3
2005-2015 Nissan Xterra
2005-2019 Nissan Frontier
2005-2019 Nissan Pathfinder
2005-2011 Cadillac STS
2005-2010 Buick Allure
2005-2018 Honda Odyssey
2005-2014 Ford Mustang
2005-2007 Ford Freestyle
2005-2008 Pontiac Grand Prix
2005-2010 Pontiac G6
2005-2010 Chevrolet Cobalt
2005-2006 Pontiac Montana
2005-2013 Buick LaCrosse
2005-2018 Ford Focus
2005-2018 Chevrolet Equinox
2005-2007 Ford Escape
2005-2006 Lexus ES330
2005-2007 Buick Terraza
2005-2008 Acura RL
2006-2010 Volkswagen Beetle
2006-2011 Mitsubishi Endeavor
2006-2006 Lincoln Zephyr
2006-2017 Honda Pilot
2006-2017 Mazda 6
2006-2010 Mazda 5
2006-2014 Lexus IS250
2006-2019 Toyota RAV4
2006-2019 Toyota 4Runner
2006-2019 Ford Fusion
2006-2011 Buick Lucerne
2006-2011 Acura CSX
2006-2011 BMW 323i
2006-2007 Chevrolet Monte Carlo
2006-2015 Mazda MX-5 Miata
2006-2009 Pontiac Torrent
2006-2008 Mitsubishi Eclipse
2006-2008 Lexus RX400h
2006-2016 Chevrolet Impala
2006-2014 Honda Ridgeline
2006-2010 Infiniti M45
2006-2010 Infiniti M35
2007-2014 Chevrolet Suburban 1500
2007-2015 Lincoln MKX
2007-2019 Honda CR-V
2007-2016 Mazda CX-9
2007-2019 Toyota Tundra
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2007-2018 Nissan Maxima
2007-2009 Hyundai Entourage
2007-2012 Mazda CX-7
2007-2010 Ford Edge
2007-2013 GMC Sierra 1500
2007-2016 Lexus RX350
2007-2018 Acura RDX
2007-2009 Pontiac G5
2007-2012 Lincoln MKZ
2007-2008 Hyundai Tiburon
2007-2007 BMW 335i
2007-2014 Honda Fit Sport
2007-2019 GMC Acadia
2007-2017 Hyundai Elantra
2007-2018 Mitsubishi Outlander
2007-2009 Kia Amanti
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2008-2009 Pontiac G8
2008-2011 Lexus LX570
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2008-2015 Cadillac CTS
2008-2015 Toyota Avalon
2008-2012 Infiniti EX35
2008-2013 Scion tC
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2008-2011 Toyota Land Cruiser
2008-2014 Scion xB
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2008-2015 Smart Fortwo
2008-2009 Ford Taurus
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2011-2014 Dodge Charger
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2011-2016 Mazda 2
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2011-2017 Nissan Quest
2011-2013 Buick Regal
2011-2014 Chrysler 300
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2012-2012 Mitsubishi i-MiEV
2012-2017 Buick Verano
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2012-2017 Mazda 5
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2013-2016 Toyota Land Cruiser
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2013-2015 Subaru XV Crosstrek
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2019-2019 Ram 1500 Laramie Longhorn
2019-2019 Ram 2500 Laramie Longhorn
2019-2019 Ram 1500 Laramie
2019-2019 Ram 2500 Laramie
2019-2019 Ram 2500 Big Horn
2019-2019 Ram 2500 Tradesman
LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY