The best H6054 LED Headlights for the C4 Chevy Corvette

The 1984-1986 Chevy Corvette C4 came from the factory with that old-style sealed beam / halogen headlight housing. You can’t take apart the headlight and just swap out a new bulb – it’s a sealed unit which means it’s required to replace the entire assembly. A lot of people install aftermarket “composite” style 5×7″ rectangular headlight housings that allow you to install aftermarket replaceable bulbs and then people will do an HID conversion kit for more light output. But this isn’t a great option for the C4 Vette because the way the pop-up headlights work: The housing buckets actually flip all the way around, like a 180 degree spin! All of the wiring and harnesses coming off of the HID system to make it function get in the way of the pop-up mechanism and it becomes difficult to do the install. It’s possible, but there’s a LOT of wiring involved.

The C4 Corvette uses an H6054 glass/halogen sealed beam headlight housing in a flip-up assembly.

The best upgrade for the C4 Corvette is the JW Speaker 8900 LED headlight housing replacement. It will provide nearly 3 times more light output, plus a wider, brighter, and whiter beam pattern.

Because HID conversion kits are so bulky and difficult to install, your best bet is to go with a full LED housing replacement like the JW Speaker 8900. This headlight is a standard size 5×7″ sealed beam replacement housing and it’s 100% plug and play on the Chevy Corvette. They come with a 5 year warranty, and just like your Vette they are made in America!

Popular in the heavy duty trucking market, the Model 8900 Evolution is a simple drop-in replacement for 5″ x 7″ headlights. They feature a tough die-cast aluminum housing and hardcoated polycarbonate lens for maximum durability. The high quality LEDs and engineered optics produce a superior beam pattern for maximum visibility. Install it in your vehicle to see just how impressive the best LED lighting can be.

  • Your choice of chrome or black inner bezel
  • Combined high and low beam functions
  • Newer design boasts a 30% increase in high beam intensity
  • Lower power usage

For more details about the JW Speaker 8900 LED headlight for your Corvette, watch this video that goes over this particular headlight and some other options too:

Jeep Wrangler TJ with Tracks, LED Headlights, LED Light Bar, and Offroad Upgrades

We’re excited to show off this 2004 Jeep Wrangler TJ. It’s not your average Jeep, check out the Fox shocks, Mattracks, light bars, and LED headlights. It has a ton of upgrades and we’re excited to be a part of this build! If you want to do these types of upgrades to your jeep, let us know!

Headlight Revolution Jeep Wrangler with tracks and LED light barMounted up front is a Vision X LED Light Bar part number XIL-PX36M. It also has a set of JW Speaker 8700 7″ Round LED Headlights.

Headlight Revolution Jeep Wrangler with tracks and LED reverse lightsThe back of this TJ has a set of Vision X XIL-UMX4460 LED flood lights mounted on the spare tire carrier rack as well as a set of aftermarket LED tail lights.

Headlight Revolution Jeep Wrangler with tracks and LED reverse lightsHeadlight Revolution Jeep Wrangler with tracks and LED Lighting

This Jeep is technically an LJ model but many people don’t understand the difference, they only know that the more well known “TJ” model is between the YJ and the JK models. However the LJ is a variant of the TJ body. The TJ came in two body styles: Long body with 4 doors, and a short body with 2 doors. The LJ is the lesser known configuration that is a long body with 2 doors.


Differences between the GTR Lighting GEN 2 and GEN 3 LED Headlight Bulbs

In March 2015, GTR Lighting released the GEN 2 LED headlight bulbs which were the second LED headlight bulbs from GTR Lighting. (The first being released a year earlier.) These GEN 2 Bulbs were 1,000 lumen brighter and featured a unique color shield system to change the color of the light output. This new generation of LED headlight bulbs also created a beam pattern which was more usable and focused. These GEN 2 bulbs were widely received and we found them to work specifically well in the 14-17 Toyota Tundra. So when we began to hear rumors from GTR Lighting that they were releasing an even better generation we got excited! In this article, we’ll point out the differences between the GEN 2 and the newly released GTR Lighting GEN 3 LED Headlight Bulbs.


Before we dive into the specification differences, the first thing to point out is the body of the 3rd generation bulbs. Then GEN 3 bulb uses a fan-less design to cool the bulb. The original GEN 1 and GEN 2 bulbs used a fan in the base of the bulb to pull away heat and cool the bulb. The fan in the first generation model worked well enough to cool the bulb, but we’re excited for a new cooling system that does not involve a fan that may potentially fail. The GEN 3 LED Bulb uses a hollow base that allows for convection cooling and air movement through the base.

The other big difference is that the GEN 2 used an “All-In-One” style driver technology. However convenient this was, it increased the mounting depth required to run the bulbs. The new GEN 3 uses an external driver and sports a half-inch shorter heat sink which means it will fit way more applications than it’s predecessor!

Different LED Headlight bulb cooling options

The ability to change the color of the light output on the GEN 2 bulbs really was a unique feature that many owners loved. It’s also a feature you will not find in this newest 3rd generation of LED bulbs; the GEN 3 bulbs have an unchangeable 6,000K color. Although this color is beautiful, bright, and clean white, some owners may be disappointed in the single-color choice. When asked about the change GTR Lighting admitted that using a glass shield around the LEDs on the old bulbs increased operating temperature and may have led some models to premature failure.

But a difference between GEN 2 and GEN 3 that will not disappoint is light output. The GEN 2 bulbs had an advertised 3,600 Lumen output while the GEN 3 bulbs have a 3,700 Lumen output. “But that’s only a 100 lumen difference” you say. Correct, but let’s look at the lux numbers:

Beam Pattern testing with the GTR Lighting LED Headlight bulbs

This picture was taken at a distance of 25 feet with the stock halogen bulbs, GEN 2 LED, and GEN 3 LED bulbs all placed inside the same headlight housing. As you can see, the lux amount produced from the GEN 3 bulb is 1,000 lux more than from the GEN 2 bulb. Why is this important and what even is Lux? Well, let me explain.

Lumen is the amount of total light produced from a bulb. It’s true that the more lumen is produced the brighter a light is, but Lumen is only one factor in determining usable brightness. Lux is how usable light is determined. As you can see in these test shots, the GEN 2 bulb which has 3,600 lumen only produces 360 Lux and the GEN 3 bulb that has 3,700 lumen produces 1,360 lux. How can it create so much more lux with only 100 extra lumen? What’s the difference? Well, look closely at the beam pattern pictures. The GEN 3 bulb creates a beam pattern with a very distinct and very intense hotspot. As you look at the GEN 2 bulb beam pattern you’ll see that this hotspot is small and more dim. Lux is a measure of these hotspots. Lux is measured within the beam pattern at a distance of 25 feet and measures the amount of light that is actually being thrown from the headlight down the road. Let me put it this way, a bulb with high lumen amounts could be unfocused and produce low lux amounts as a result. On the other hand, a bulb with the same amount of lumen that is able to be focused well inside a headlight can produce very high Lux amounts. The major difference we see here in usable light output is not really a matter of Lumen, but a matter of precise focus and the resulting lux. A huge difference we’ve seen between the GEN 2 and the GEN 3 bulbs is the ability of the GEN 3 bulbs to create a better-focused beam pattern versus the GEN 2 bulbs. Here’s why:

LED chip technology has greatly improved since the early days of LED headlight bulbs. Take a look at the difference between the GTR Lighting GEN 2 and GEN 3 LED Headlight Bulb chips. The GEN 2 bulbs featured CREE XT-E LED Chips. The new GEN 3 bulbs feature Lumileds Luxeon Z ES Chips. These new Lumileds chips are much smaller and can actually be shaped into a configuration that more closely resembles the footprint of a standard halogen bulb. The design and layout of these new GEN 3 bulbs are what create a beam pattern more similar to a stock halogen bulb.

Different LED bulb LED chips and chip arrangements effecting output

GTR Lighting GEN 2 LED Headlight Bulb Specs:

  • 3,600 Lumens Low Beam / 4,500 Lumens High Beam Light Output Per Bulb
  • 40 Watts Low Beam / 80 Watts High Beam Energy Usage Per Bulb
  • LED Light Color Without Tint Shields: 5,000K
  • Optional Colors with Optional Tint Shields: 3,000K 4,300K 5,000K 6,000K 10,000K
  • Waterproof Ball-Bearing Fan for cooling
  • Eight USA Made CREE XML LED Chips per bulb
  • Smart and Efficient Cooling System uses Built-In Cooling Fan.
  • Total Consumption 160W. 80/40W per bulb

GTR Lighting GEN 3 LED Headlight Bulb Specs:

  • Raw Lumen Per Bulb: 3,700
  • Effective Lumen Per Bulb: 1,800
  • LED Color: 6,000K
  • Max Lux at 3 Meters: 5,000
  • Max Lux at 25 Feet: Depends on Vehicle
  • Lifespan: LED Chip Rated at 50,000 Hours
  • LEDs Used:
    -Single Beam Bulb, x6 Lumileds Luxeon Z ES Chips.
    -Dual Beam Bulb, x12 Lumileds Luxeon Z ES Chips.



What are the best 4×6″ Sealed Beam LED Headlight Housings?

This is a loaded question… not that there isn’t a best, but the reality is there are several in the same realm that might be considered THE BEST but depending on your preference. Don’t get me wrong, there are some that are AWFUL!! But to point out 1 “best” is tough.

It’s hard to pick out which one of these top 3 is the best because they each have different pros and cons.

The JW Speaker 8800 Evolution has long since been revered as the best LED 4×6″ sealed beam headlight housing replacement on the market. However in 2016 a few other options entered the scene and there is some pretty stiff competition! So first let’s talk about what makes the JW Speaker 8800 one of the best:

The JW Speaker 8800 4×6 headlight is a single beam LED housing replacement that gives you either low beam or high beam in each housing, not both. They used to have a lifetime warranty but starting in 2017 they now only carry a 5 year warranty. They are manufactured right here in the USA in Germantown, Wisconsin, and they have one of the best and brightest beam patterns of any headlight in the world! Also February of 2017 there is a new 8800 Evolution 2 that comes in a heated 4×6″ version that is even brighter than the old one.

The Vision X Vortex XIL-46D is a new option for 2016 and the notable things about this headlight are that it comes in a dual beam configuration with both high and low beam in one housing! The Vision X Vortex and the JW Speaker 8800 are about the same brightness, but the beam patterns are totally different!

The fact that the Vision X Vortex headlight is dual beam is a HUGE deal. There is only one other on the market (United Pacific 31365) that is dual beam and the Vision X Vortex headlight is SO MUCH BETTER. If you need a dual beam 4×6 LED housing, the Vision X Vortex is really the best choice by far. Also it has an integrated LED halo / accent light that a lot of people like. You won’t get a halo type accent light like this on any other current model 4×6″ Sealed Beam LED headlight housing.

The Truck-Lite 4×6″ LED headlight comes in a single beam configuration only also: The low beam is part number 27640c and the high beam is part number 27645c. This headlight is cool because it has a kind of black-out look to it:

Truck-Lite was the first company in the world to make an LED headlight housing replacement for a sealed beam headlight, and they did that with the Phase 6 7″ round unit that was primarily used in the military on Hummers.  Today they make a low-cost version for the 4×6″ that is light weight, and far less expensive than the other top-tier options listed here. The trade off of course is that the Vision X 4×6 and the JW Speaker 4×6 are vastly superior in terms of light output and beam pattern, but for the money the Truck-Lite option is solid.

The Difference Between Lux and Lumen: What is Brightness?

When looking for new headlights, such as LED headlight bulbs, everyone wants to know “What’s the brightest headlight bulb?” Well to answer that question and to truly get a better picture of what “brightness” is, we need to get scientific and define a few terms. But not to worry! I’m going to make this article as simple as possible to wrap your head around. So stick with me for a moment and you’ll be a pro when it comes to figuring out and understand true headlight brightness.

The two main words to define as we talk about headlight brightness are lumen and lux.

Lumen: A unit of measurement for luminous flux which is a measure of the total quantity of visible light emitted by a source.

Lux: A unit of measurement for illuminance which is a measure of how much luminous flux is spread out over a given area.

“One can think of luminous flux (measured in lumens) as a measure of the total “amount” of visible light present, and the illuminance (measured in lux) as a measure of the intensity of illumination on a surface at a particular distance from the source.”

So let’s think about these definitions as we see how lumen and lux amounts are measured and how that process applies to headlight bulbs.

Integrating sphere used to measure lumen.

Luminous flux, which I’ll just refer to as lumen, is measured inside of a device called an integrating sphere. A bulb is placed inside the sphere and the light given off by the bulb is scattered by the interior of the integrating sphere and evenly distributed over all angles. The total lumen amount of a light source can be measured accurately since light can be captured from all angles from inside the sphere. While this method of measuring the brightness of a bulb works well for lighting applications where 360 degrees of light is needed, (such as a table lamp) the lumen amount is only half of the story while testing the brightness of headlight bulbs. This is why illuminance and lux are so important.

Lux is measured by installing the bulb inside a headlight housing and testing to see how well the lumen amounts are projected or reflected out from the housing. In this instance, we measured the beam pattern created from the headlight housing and bulb combination on a wall 25 feet away. From this distance and this position, we are able to see the lumen amounts from the bulb that are truly being utilized and turned into a usable beam pattern by the headlight housing. When measuring lux this way, we are able to take into account multiple factors playing into the brightness of the bulb and find a clearer picture of true, usable light. The lumen amount from the bulb, the relationship between bulb and headlight housing, the resulting beam pattern, and distance are all factors when calculating lux this way.

Testing the brightness of a headlights beam pattern

A digital light meter used to measure lux. In this application, lux is being measured in a beam pattern created by a LED bulb inside a headlight housing.

So you’re probably thinking, “Well then, doesn’t that mean a headlight bulb with the highest lumen amount will be the brightest?” Maybe. Remember, lumen amounts are only one piece of the puzzle when determining usable light brightness.

“A given amount of light will illuminate a surface more dimly if it is spread over a larger area, so illuminance (lux) is inversely proportional to an area when the luminous flux (lumens) is held constant.”

It is possible for a bulb with high lumen amounts to focus poorly once placed inside a headlight housing due to poor engineering and design. The result would be an unfocused beam pattern with light reflected or projected poorly. In that case, a poorly focused beam pattern from a bulb with an initially high lumen amount would have low lux measurements because the light is spread out or unfocused. A headlight like this would be “bright” on paper, but not actually usable in a real-world scenario. Below we see an example similar to this scenario in a 2007-2013 Toyota Tundra headlight housing. Two LED bulbs were tested here along with the stock bulb, but take a look at the beam patterns and lux numbers.

Beam Pattern testing with the GTR Lighting LED Headlight bulbs

Original equipment halogen bulbs typically emit 900-1,000 lumen, and this stock bulb was measured at 530 lux at 25 feet with this headlight housing. The GTR Lighting GEN 2 LED bulb emits 3,600 lumen and was measured at 360 lux at 25 feet inside this headlight housing. That LED bulb in that headlight housing actually produced less lux than the stock bulb even though it has 3-times the lumen. The difference can be seen when comparing the two beam patterns. The additional lumen amounts are not focused as precisely within this Tundra headlight housing as the stock bulbs are. The result is a beam pattern less concentrated and arguably less bright.

And this increase of 1,000 lux is achieved by only a 100 lumen increase in light…

Now compare the two LED bulbs. The GTR Lighting GEN 2 bulb emits 3,600 lumen and was measured at 360 lux at 25 feet inside this headlight housing. Whereas the GTR Lighting GEN 3 bulb emits 3,700 lumen (only 100 more) and was measured at 1,360 lux at 25 feet inside this headlight housing. This bulb is emitting high lumen amounts and high lux amounts inside this headlight housing. Take a look at the beam patterns and you’ll see why. This LED bulb is capable of producing a beam pattern that is more concentrated versus the other LED bulb, and more closely matches the stock bulb beam pattern. And this increase of 1,000 lux is achieved by only a 100 lumen increase in light output. This is achieved through a better-designed bulb that interacts with the headlight housing much like a stock halogen bulb would.

All that to say, when comparing the brightness of headlight bulbs, make sure to look at the big picture. With LED headlight bulbs especially, make sure you take into account the beam pattern the LED bulb creates when placed inside a headlight housing. Look at more than just the advertised lumen amounts–if the manufacturer gives lux numbers look for those too. Also, see how the bulb itself is designed and look for bulbs that more closely fit the profile and dimensions of a stock halogen bulb.