In the world of Jeeps, commercial trucking, classic cars, and motorcycles, the 7 inch round LED headlight has become a hot topic. My name is Chris with Headlight Revolution, and in this article we are digging into the United Pacific 31400 7 inch LED headlight. We tested it in our stand at 25 feet from the wall to keep everything consistent, we measured the beam pattern with a digital light meter, and we took it outdoors for a real world field test. If you are shopping for a universal round LED headlight for a Jeep, a commercial truck, a classic car, or a motorcycle, this is the objective breakdown you have been looking for.
What Is the United Pacific 31400?
The United Pacific 31400 is a 7 inch round reflector style LED headlight. Instead of a projector, it uses a classic reflector housing that is broken up in the center with a bar. Hidden behind that bar are two LEDs, one facing up and one facing down into the reflector, and that is how it creates the different beam patterns. When we turn it on high beam, the whole housing lights up. When we switch to low beam, you only get light out of the top portion of the housing. It is a clever way to package two beam patterns into a single round reflector housing.
Depending on where you purchase this headlight, it will be available in either of two colors, black or chrome. That center section changes to a black color or a chrome color depending on the seller. It will also carry a different logo in the middle, come at a different price, and include a different warranty depending on the vendor. So do your research, find everybody who sells it, and compare. It does not matter where you get it from because it is all the same headlight underneath.
One Headlight, Many Names
Here is where it gets interesting. This headlight is actually manufactured by a company out of Taiwan called Maxima, and the original part number before United Pacific got involved was MHLD07HLO. It is the exact same product whether you buy the United Pacific version or a rebadged version. That means the Anzo 88135, the GTR 90941-5, and the Quadratec 97109-Z001 are all the same headlight. Whether you buy the United Pacific version or the Anzo version, it is a really good, solid, low cost, high quality headlight.
The takeaway is simple. When you are comparing prices online and you see this same reflector housing under four different brand names, you are looking at one product with four labels. Buy based on price, warranty, and the color option (black or chrome) that matches your build.
Build Quality and Design
On the back side, we have a fairly low profile aluminum heat sink. I am also a big fan of the connector that these Maxima and United Pacific headlights use. It is very low profile, so it should fit in just about any application, which matters a lot when you are working with the tight space behind a headlight bucket on a Jeep or a classic car.
Inside, the United Pacific 31400 uses one Philips Luxeon Altilon LED and one Philips Luxeon Z LED chip to create the beam pattern. Those are the two LEDs hiding behind that center bar, and they are what give this headlight its distinct high and low beam behavior.
Specifications
We like to keep the spec talk grounded in measured numbers and published data, so here is exactly what this headlight brings to the table:
- Input voltage: 12 to 24 volts DC
- Mounting depth: 2.5 inches
- Low beam power draw: 1.42 amps at 12 volts DC
- High beam power draw: 2.411 amps at 12 volts DC
- Low beam Lux at 25 feet: 504 Lux
- High beam Lux at 25 feet: 1,397 Lux
- Low beam Lumen rating: 500 Lumen
- High beam Lumen rating: 2,400 Lumen
- DOT approved
- Made in Taiwan
The 12 to 24 volt input range is a nice touch because it opens this headlight up to commercial trucks that run 24 volt electrical systems as well as the 12 volt vehicles most of us drive. Combine that with a shallow 2.5 inch mounting depth and the compact connector, and you have a headlight that is genuinely universal in fitment.
Road Legal Approval
On the front lens of the headlight you can see some lettering and numbers, and it does say that it is DOT and SAE approved. That approval is going to be the same regardless of which brand you get this headlight from. So whether you buy the United Pacific, Anzo, GTR, or Quadratec version, the road legal marking stamped on the lens does not change.
Indoor Beam Pattern Testing
We set this headlight up in our stand at 25 feet from the wall, held it at the same height as every other headlight we test, and measured the output with a digital light meter. Here is the low beam indoors against the wall. Our maximum Lux at 25 feet for low beam came in at 504 Lux. Overall it is a good light output. It could be improved a little bit, but for a low cost reflector housing it holds its own.
Then we switched to high beam on the same United Pacific 31400 headlight. Max Lux at 25 feet jumped to 1,397. Look at the shape of that high beam, it has a lot of vertical lines and some interesting shapes to it, which made us curious about how it would translate to a real world outdoor setup.
Outdoor Field Testing
Here is our outdoor testing field, set up in 10 yard increments all the way down to 100 yards. The 100 yard mark is the far sign down on the left side. On low beam, it is not as illuminated as the 80 yard sign, but you can still see that it is there, so we know we have illumination all the way down to 100 yards on low beam. I like this beam pattern because it is very smooth looking. It is wide enough that even with just one headlight, it covers the whole road and spills out into the ditches, and there is really no weird shadowing or striping in the pattern.
When we switch to high beam, we get a lot more light. That 100 yard sign all the way down on the left side is completely illuminated, and even past that we have a lot of vertical light output. We keep all the same left to right coverage, and we even pick up a little more foreground light. This headlight just gets better when we switch it to high beam.
How It Fits Into the 7-Inch Round Market
The United Pacific 31400 is a strong value option in the round LED headlight category, but it is not the only game in town, and part of our job is to show you the full landscape so you can decide for yourself. If you want to step up to a projector based Bi-LED option, we have tested the Morimoto Sealed7 2.0 Bi-LED 7-inch headlight, and you can also grab the Sealed7 2.0 universal Bi-LED headlight at Morimoto directly.
For Jeep Wrangler owners who want a more feature packed kit, take a look at the Super7 Jeep Wrangler LED headlight kit. And if you prefer a sealed beam style with a more classic filament look, the Holley RetroBright 7-inch sealed beam LED headlights are worth a look.
To see how a whole group of these round options stack up head to head with measured numbers, check out our full 7-inch round sealed beam LED headlight shootout results. We tested a whole field of them the same way we tested this United Pacific unit, so you can compare apples to apples.
Our Verdict
The United Pacific 31400 earns its place among the 7 inch round LED headlights we would recommend. It delivers a smooth, wide, shadow free low beam that reaches out to 100 yards, a noticeably stronger high beam with extra vertical throw and foreground light, DOT and SAE approval, a wide 12 to 24 volt input range, and a shallow mounting depth with a compact connector that fits nearly any application. Add in the low cost and the fact that it is sold under several brand names so you can shop for the best price, and this is an easy headlight to suggest for Jeeps, commercial trucks, classic cars, and motorcycles alike. I am not going to rank the round headlights best to worst, because these are all headlights I would recommend, and I want you to make up your own mind based on the measured results.
Frequently Asked Questions
What is the United Pacific 31400 headlight made of and where is it manufactured
It is a 7 inch round reflector style LED headlight manufactured in Taiwan by a company called Maxima, and it is sold under multiple brand names including United Pacific, Anzo, GTR, and Quadratec.
What LEDs does the United Pacific 31400 use
It uses one Philips Luxeon Altilon LED and one Philips Luxeon Z LED chip to create the low and high beam patterns.
What are the power draw and voltage specs for this headlight
It runs on 12 to 24 volts DC, drawing 1.42 amps on low beam and 2.411 amps on high beam at 12 volts DC.
How bright is the United Pacific 31400 in testing
At 25 feet, the low beam measured 504 Lux and the high beam measured 1,397 Lux, with rated outputs of 500 Lumens low beam and 2,400 Lumens high beam.
Is the United Pacific 31400 legal for road use
Yes, the headlight is DOT and SAE approved, and this approval marking is the same regardless of which rebadged brand version you purchase.
Meet the Experts Behind Headlight Revolution
Chris Nelson – Founder
Before founding Headlight Revolution in 2011, Chris worked as an automotive install technician specializing in lighting, sound systems, and engine performance parts. He has personally tested thousands of lighting products and works directly with lighting engineers to evaluate the technical performance behind every recommendation.
Josh Beberg – Content Production Manager
Josh leads hands-on testing and content production at Headlight Revolution. From beam pattern comparisons to real-world installations, he works directly with lighting engineers to ensure every review is grounded in measured results, not marketing specs.
