In the world of Jeeps, commercial trucking, classic cars, and motorcycles, the LED headlight has become a hot topic. My name is Chris with Headlight Revolution, and in this article we are digging into 7-inch round LED headlights, comparing options through objective measurements and manufacturer specs. The one on the bench today is the United Pacific 31355 7 inch round LED headlight, and it is genuinely one of the more unusual lights we have tested. It is an older model that nobody else carries, but it is still current in the United Pacific catalog, and if you are chasing a spaceship style look, it does a trick that most round headlights simply cannot.
What Makes the United Pacific 31355 So Different
We were genuinely excited to get this one in and test it, because it is so weird looking. When we powered it up on high beam, you can see it has 11 LEDs arranged around the perimeter, and those are not just accents. That ring is the actual high beam. When you switch to low beam, the only thing that lights up is the single LED in the reflector bowl at the center of the headlight. We do not know what type of LEDs United Pacific used here, but the color is really good, and the way it splits the two jobs across two completely different light sources is unlike anything else in the 7-inch round category.
The low beam is not much to brag about on its own, but the high beam is downright impressive. The design is busy, and if you are not into a crazy futuristic look, I would pass this one up. But if you want something really special and you are willing to do the work to mount it, this is a genuinely cool option.
Build Quality and Mounting Depth
The reason I say you have to be willing to do the work is because of how massive this thing is. Most 7-inch round headlights go back a short distance and just stop. This one has a huge pillar of completely sealed and potted electronics and heat sink hanging off the back. That gives it a mounting depth of about 3 inches, which is deep enough that you need to confirm you have the clearance behind your bucket before you commit.
On the plus side, it has quality control check stickers on it, which is always a good sign, and the wires are decently potted and sealed. The H4 connector on the back leaves a little to be desired. It is not the best out there, but it is decent, the wires do not pull out, and it is pretty easy to use. The only inscription on the face of the light reads DOT SAE HL VOR11 NSF-2243, which confirms this headlight is DOT approved and can be visually adjusted.
Specifications and Power Draw
The United Pacific 31355 uses 11 unknown-style LED chips for the high beam and a single LED in a reflector for the low beam. Input voltage is a wide 9 to 24 volts DC, so it works on 12V and 24V systems alike. On our bench, low beam drew 0.7 amps at 12V DC, and high beam drew 1.62 amps at 12V DC. Because the high and low beams are wired as two separate circuits, you can run them both at once, and when we did that the combined power draw came to 2.35 amps. Both the low beam and the high beam are rated at 2100 lumens.
This headlight is made in Taiwan and is available in black or chrome finishes from United Pacific. Those two finish options make it easy to match to a blacked out build or a classic chrome bucket.
Beam Pattern Testing at 25 Feet
As with every light we review, we set the 31355 up in our stand at 25 feet from the wall, kept it at the same distance and height as the rest of the group, and measured Lux with our digital light meter. This keeps the comparison honest and lets us show you real results instead of marketing numbers.
Low Beam
Here is the low beam shot on the wall. The maximum Lux we recorded at 25 feet was 549. At first glance it does not look that impressive. The low beam is just a single LED inside a reflector bowl, giving you a big hot spot right in the center with a fairly decent cutoff line, but the brightness drops off rapidly from left to right as it moves toward the edges. It has an interesting sunglasses type wave shape, going up and down through the center before reaching the outside, with some interesting shapes up top caused by the reflector. It is not extremely impressive, but it is on par with other options out there and it is bright enough to drive with, probably a little brighter than your stock headlights.
High Beam
When we go to high beam, it is a really strange one. All 11 LEDs around the perimeter are bound to create some kind of weird shape. A couple of the LEDs point toward the outside, more on one side than the other, but the majority face straight ahead, so you get a great big circle of light. Make no mistake, though, this thing is incredibly bright. The high beam measured 1185 Lux at 25 feet. Down range it throws a lot of light straight down the middle, well past the 100 yard mark, and the trees are really lit up.
High and Low Beam Together
Now here is the party trick. Because the low beam and high beam are two separate circuits, you can turn them both on at the same time. When we did that, the maximum Lux output jumped to 1357 at 25 feet. It is a lot of light. This may not be the prettiest or best designed beam pattern out there, but you will not have any trouble seeing with everything lit up. If you do a lot of back road driving where you get to use your high beams often, that combined mode is a serious advantage.
How It Fits Into the 7-Inch Round Market
The 31355 is not a light you buy because it is the perfect fit for a Jeep or because it has the cleanest beam pattern. You buy it because you want a truly interesting looking headlight and you are okay with a beam pattern that trades a little polish for character and raw output. It is a little expensive, but it is definitely brighter than your stock headlights, and that combined beam feature is something the competition does not offer.
If your priority is a refined, road-focused beam with a factory quality cutoff, there are other options worth a look. We really like the Morimoto Sealed7 2.0 Bi-LED Headlight for its projector-based performance, and you can also find the Sealed7 2.0 LED headlight LF271 from Morimoto directly. For a more classic sealed beam appearance with modern LED output, the Holley RetroBright 7-Inch Sealed Beam LED Headlights are a great choice, and off-road builders often gravitate toward the Vision X VX Series 7″ Round headlight.
If you want to see how all of these stack up side by side with measured numbers, check out our full 7-Inch Round Sealed Beam LED Headlight Shootout. The seven lights we lined up in that comparison are, honestly, the only seven we would recommend to anybody for anything, and the United Pacific 31355 earns its spot as the wildcard of the group.
Who Should Buy the United Pacific 31355
If you are going purely for light output quality and beam pattern refinement, this might not be the one. But if you love the spaceship look, want a headlight that turns heads, and you will actually use that combined high and low beam mode on dark back roads, the 31355 delivers a lot of fun and a lot of light. Just remember the roughly 3 inch mounting depth, plan your install accordingly, and pick the black or chrome finish that suits your build.
Frequently Asked Questions
What makes the United Pacific 31355 different from other 7-inch round LED headlights?
It uses 11 LEDs arranged around the perimeter for its true high beam, while the low beam runs off a single LED inside a reflector bowl, and the two beams can also be switched on together as separate circuits.
Is the United Pacific 31355 DOT approved?
Yes, the lens is marked DOT SAE HL VOR11 NSF-2243, and the headlight is visually adjustable.
How much light does the United Pacific 31355 produce?
At 25 feet the low beam measured 549 Lux, the high beam measured 1185 Lux, and combined they reached 1357 Lux, with both beams rated at 2100 lumens.
What is the power draw of the United Pacific 31355?
The low beam draws 0.7 amps, the high beam draws 1.62 amps, and running both together draws a combined 2.35 amps at 12V DC, with an input range of 9 to 24 volts DC.
What colors and where is the United Pacific 31355 made?
It is made in Taiwan and is available in black or chrome housing finishes, with a mounting depth of about 3 inches.
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.
