H4: S-V.4 LED Bulbs

110 Reviews

Brand: SV4




PART #: 2 x SN.LED116


Introducing the S-V.4 Bulbs – a breakthrough in lighting technology! Unleash an unmatched brilliance with cutting-edge LED chip innovation, producing dazzling light while maintaining a perfect beam pattern. Unlike other bulbs, S-V.4 boasts seamless light output from its advanced multi-core LED chip design, setting it apart from the competition. Crafted from premium 6063 aluminum, S-V.4 ensures top-tier thermal management, effectively dissipating heat and guaranteeing longevity. Its integrated micro-fan, waterproof and submersible, keeps things cool under pressure. Worried about compatibility? With built-in CANBUS integration, flickering and errors are a thing of the past, making S-V.4 a seamless fit for your vehicle. Don't compromise on design – S-V.4's compact form fits snugly even in tight spaces. Experience heightened visibility, wider angles, and a sleek white light beam that outshines halogens. Upgrade your ride today with S-V.4 – the epitome of performance, style, and innovation.


  • Cutting-Edge LED Chip Technology: Experience unparalleled brightness and a perfect beam pattern.
  • Advanced Thermal Management: Crafted from 6063 aluminum for exceptional heat dissipation and corrosion resistance.
  • CANBUS Integration: Built-in circuitry eliminates flicker and errors in modern vehicle systems.
  • Compact Design: Low-profile build fits even tight spaces, with a diameter of only 39mm.
  • 2-Year Warranty: Enjoy peace of mind with our extended warranty coverage.


  • LED Bulbs: 2x (One Pair) H4 S-V.4 LED Bulbs

  • LED Drivers: 2x S-V.4

  • Wiring: H4 Plug and Play Inputs


This product includes a 2 Year limited warranty, serviced and supported by our team in Atlanta, GA. This warranty does not cover modifications, alterations, or misuse. For additional information, contact us.


  • Intensity: 3,600lm

  • Power: 36w

  • Input Voltage: 8-32V DC

  • Light Color: 6000K (Cool White)



  • FITMENT: H4, H4-60/55W, H4-45W, 9003, 9003LL

  • Do I need PWM / Anti-Flicker Modules?: When using in Fog Lights: Unlikely. With low beams that double as Daytime Running Light: Likely.With high beams that double as Daytime Running Light: Likely. When the vehicle is late model American (Chrysler, Dodge, Jeep, Ford, GM): Likely.

Cutting-Edge LED Chip Technology: We challenge you to find another bulb on the market that produces as much light as the S-V.4 while still retaining a perfect beam pattern! The S-V.4 LED fog light bulbs utilize the newest multi-core LED chip styles that feature one long crystal over the entire diode array to create a seamless light output source. Most LED fog light bulbs on the market essentially create 2, 3, 4, or 6 different light sources by stacking 2-6 different chips together in a line. The NLW1860CV2 chips are based on XD14 technology developed by CREE, this custom designed LED chip has no light gap between diodes which gives it a closer function compared to the original filament bulb, thus achieving a greater beam accuracy that works best in any fog light or fog light housing.

Thermal Management: The S-V.4 LED fog light bulbs are built from the highest quality 6063 aluminum material originally designed for aircraft and space craft applications. This material has amazing heat dissipation qualities as well as is 100% corrosion resistant in automotive applications. On the bottom of the heat sink lies a high-speed double ball bearing micro-fan that is fully submersible and waterproof! If the fan stops working, the sophisticated thermal management system inside the bulb will dim the fog light until it is safe to use. Considering that these bulbs can be up to 6x brighter than your original bulbs, even at 50% power, they will still be safe to use on the street in most situations. The heavy duty LED bulb power driver has a built in smart fan circuit that ramps up the speed of the cooling fan as necessary so it's as quiet as possible when it can be.

Compact Design: Most LED fog light bulbs that use a fan-based active cooling system are known for not being small or easy to fit inside fog light housings with a dust cover. The S-V.4 is designed to be as compact as possible. The mounting depth is 20-25mm on most bulb variants, low profile enough to fit even the most demanding of spaces! The heat sink / fan diameter is only 39mm! The LED driver on this bulb is larger than the previous generation, but it is still the right size to fit inside most fog light housings comfortably.

CANBUS Compliant: Do your LED fog light bulbs flicker, pulse, give you errors and warnings on the dash? Do they even work at all?? Chances are your vehicle employs some version of CANBUS or PWM to control the lighting functions. These complex OEM systems rely on the physical readings of your original fog light filament to determine of your bulbs are operating properly. Simply put, when you install an LED fog light bulb, that function sometime determines that the bulb is broken, or missing entirely and will cause the truck to malfunction. Sometimes this means they don't come on at all, other times they flash, and sometimes they will suddenly shut off while you're driving! All of these things are solved by the built in CANBUS integration circuit found already inside the S-V.4 LED driver. Sometimes an extra PWM module may still be necessary, but this bulb is totally plug and play on the vast majority of vehicles on the road today, even brand new models!

Dimming: The S-V.4 bulbs dim less and less bright until they turn off at 8V DC.

DRL: If the DRL function is lower than 8V DC, the bulbs will just not turn on at all. But if they use CANBUS or PWM at 12V DC they will work normally.

CANBUS: Some vehicles use CANBUS function to monitor and control your fog light and fog light bulbs. The S-V.4 has a slightly larger LED driver than normal because the CANBUS anti-flicker and anti-error circuitry is built in! No external components should be needed to install these bulbs with a CANBUS-Equipped vehicle. Easy plug and play installation. 2 year warranty.

Want your fog lights: to shine brighter and further but your current bulbs just aren't cutting it? Want to get rid of that old yellow light tint and give your ride an updated look with a cool white light beam? Look no further! These LED fog light bulbs will cast a precise light beam that will give you increased visibility, a wider viewing angle, and a much longer lifetime over conventional halogen bulbs.

The S-V.4: comes in every popular style to replace any fog light or fog light bulb. Match the bulb number of your original application (example: 9005, 9006, H4, H13, etc...) with the matching S-V.4 LED fog light bulb and replace bulb for bulb. Fits all applications including projectors, and fog lights with dust shield covers.


Much better night driving

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Huge improvement over stock bulbs in my 2014 Tacoma. Fairly easy install too. You will be happy you bought these.


Best lights on the market

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I have 4 sets currently and ready to order two more sets- best lights on the market that I've tried.


Purchased 5 kits, 3 failed beware


IÄôm not sure what to say but disappointment made a serious commitment and have 5 kits. For myself and family and now they are all failing for the same reason. Fan bearings are failing
Presently have warrantied 3 kits ;(
DoesnÄôt matter how great the beam pattern is if they are going to fail every 1-1.5 years


Great bulbs

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The bulbs worked great and as expected.



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Amazing light output perfect beam pattern. Reading signs very easy at night


2004 Honda Pilot EX

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Even though they don't list Honda vehicles , they fit and operate very well. The light output is brighter than OEM or Sylvania brand.


Everything as expected

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Everything as expected


Really nice on the 240D

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Really nice on the 240D



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I love these bulbs. They are the brightest I've had before. In my application, I had tried a few different LED bulbs that didn't fit. These were in in about 10 minutes and fit perfect.My hats off to headlight revolution for steering me in the right direction for this purchase.


Very nice upgrade!

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These led lights are a total upgrade to my normal xenon Hologen bulbs! Perfect fitment, very nice output lighting like 3 times the brightness without blinding folks on the road and no adjustment needed to headlight housing at least four me. Very good quality overall for the price, it's a must have! Thanks!

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