Correct aim puts your projector headlight's sharp cutoff and bright road coverage where you need them. Every aftermarket headlight leaves the factory with a nominal setting that assumes a level vehicle at a certain ride height; your truck, with its tires, its lift, and its load, is not that vehicle. Aiming takes twenty minutes, a wall, and a roll of tape, and completes your installation.
Aim the low beam only, on level ground, 25 feet from a wall, with the top of the cutoff 2 to 3 inches below the height of the projector. Do it before the final tightening if the adjusters are hard to reach, and do it again after any change to tires, suspension or load.
Where the adjusters are on a RIGNOX headlight
Every RIGNOX headlight is aimed on a calibration screen before it leaves the factory, so most owners only need a quick check. The aim can still shift slightly in transit, and the factory setting assumes a level vehicle at stock ride height, so check it once against a wall after you mount the lights.
The adjusters are built into the back of the housing, in the same general location as the factory lamp's: one moves the beam up and down, the other moves it left and right. The tool depends on the adjuster head on your model: a Phillips screwdriver, a flat-blade screwdriver, or an 8 mm socket on an extension. Check the head before you start; your vehicle's installation guide shows where the adjusters sit.
One thing to know before you mount the lamp: on some trucks the adjuster is easier to reach before the bumper goes back on. If your installation guide says access is tight, set the aim roughly with the lamp loosely mounted, then tighten, then fine-tune. Doing it this way saves pulling the headlight back out later.
The 25-foot wall method, step by step
1. Set the vehicle up the way you actually drive it
- Level ground. A sloped driveway will put your aim off by inches.
- Tires at normal pressure, the usual load in the bed or cabin, half a tank of fuel. If you tow regularly, aim with the tongue weight on.
- Hood latched, no snow or mud weighing down the front.
- If your headlights have powered leveling (the spec table says "Powered leveling"), set the dash leveling dial to its 0 / unloaded position before you start.
- A flat, light-colored wall or garage door. Do this at dusk or in a dark garage; you need to see the cutoff clearly.
2. Mark the reference lines
- Pull up close to the wall, about 3 feet, with low beams on. On the wall, mark the vertical centerline of each beam's hot spot with a strip of tape, and the height of the projector center (measure from the ground to the center of the projector lens, transfer that height to the wall with a horizontal strip).
- Now back the vehicle straight up until the headlight lenses are 25 feet from the wall. Measure it; don't estimate. Keep the vehicle square to the wall.
3. Aim the low beam
- Cover one headlight with a towel or a piece of cardboard so you are adjusting one beam at a time.
- Find the flat top edge of the cutoff on the wall. On a projector it is a crisp horizontal line with a step up on the passenger side; the step is correct, it lights the road shoulder and signs without lighting oncoming windshields.
- Turn the vertical adjuster in quarter-turn increments until the flat part of the cutoff sits 2 to 3 inches below your projector-height tape line. Clockwise usually lowers the beam; confirm the direction on the first quarter-turn before continuing. Taller trucks and lifted vehicles: aim toward 3 inches below, or slightly more, because your lamps sit higher than the drivers you'll meet.
- Use the left-right adjuster to bring the hot spot's vertical center to the tape line you marked for that side.
- Uncover the other side, cover the one you just did, and repeat. When both are done, uncover both and check that the two cutoffs are level with each other.
4. Check high beam, then drive it
On a projector headlight, high beam is low beam plus more (the low-beam projector stays lit; a shutter opens or the high-beam projectors add), so it follows the low-beam aim and rarely needs a separate adjustment. Where a housing has a dedicated high-beam adjuster, set it so the high-beam hot spots sit at, or just below, the projector-height line. Then take the vehicle out on a dark road: if oncoming cars flash you, you are still high. If you can't see the road beyond a hundred feet on low beam, you are too low.
The aiming rule. Low beam, level ground, 25 feet, cutoff 2 to 3 inches below the projector center, quarter-turns, one side at a time. If the truck is lifted, aim lower, not higher.
Normal beam patterns
- A stepped cutoff. The passenger side of the beam rising a few degrees is the design. It is how the lamp lights signs and the shoulder without glaring oncoming traffic.
- Two hot spots or a slightly uneven pattern on a multi-projector lamp. Each projector contributes its own patch; on a wall at 25 feet the patches overlap imperfectly. On the road they blend. Aim to the highest flat edge of the cutoff, not to an individual patch.
- The beam looks lower than the factory lamp did. Correctly aimed projectors throw more light on the road and less into the air than a factory reflector did. Judge it on the road, not on the wall.
If the cutoff looks wrong
- The cutoff is a fuzzy band, not a line. The lens is fogged or you are looking at high beam. Confirm low beam and check the lens; if it's still fuzzy, send us a photo of the beam on the wall and we'll check it with you.
- The cutoff tilts across the wall. The housing isn't seated square in its mounts. Loosen, reseat, retighten before adjusting.
- The adjuster spins without changing anything. Stop. Contact us before forcing it; send a short video of the adjuster being turned and the wall, plus your order number.
When to re-aim
Any time the front ride height changes: a lift or leveling kit, new tires of a different diameter, a heavy bumper or winch, a new suspension. Also after any front-end impact, and once a year as a habit. Aim is not a one-time install step; it is a maintenance item that most owners never touch.
The short version
- Adjusters are on the back of the RIGNOX housing, one for up-down and one for left-right; use a Phillips, flat-blade or 8 mm socket to match the head. The install guide shows where. Aim roughly before final mounting if access is tight.
- Level ground, normal load, 25 feet from a wall, low beam only, one side at a time.
- Cutoff 2 to 3 inches below projector height; lifted trucks aim lower.
- The stepped cutoff and imperfect overlap on a wall are normal. A fuzzy or tilted cutoff is not.
- Re-aim after any change to tires, suspension, or front-end weight.
Correct aim completes your road-ready installation. For more on beam color, lens choice and the marking, read what DOT approved actually means. Find the adjuster location for your model in the RIGNOX installation guides.
See the builds available for your vehicle in RIGNOX headlights.
