Know exactly where every light goes before the first bracket does.

Measure the clear opening of the slat, not the outside of the grille, and check the depth behind it. A six-LED head needs a wider opening than the three-LED head. Both need a flat backing surface for the flange and clearance behind the fascia for the pigtail. If the opening is narrow, the compact three-LED mount is the fixture that fits.

Measure the clear span across the rear of the deck or tailgate, between the tail lamps, before ordering. This is the single most common sizing mistake on the whole line. A bar that overhangs the lamps blocks them, and a bar that is short of the span reads as a partial warning rather than a full-width one.

Confirm the run length between the wheel arches and mount the bar above the lowest point of the step so curbs cannot reach it. Run the pair symmetrically, driver and passenger, so the two sides read as one continuous line rather than as two separate lights.

Yes, with care. Bumper skins flex under load and around tow hooks. Use the supplied flange, back the fasteners with washers to spread the load, and route the pigtail clear of the tow-hook and recovery-point path.

Output and footprint. The U-Lite Surface Mount is a six-optic head — that count is our reading of the product photography rather than a published figure, which is why it carries an EST marker in the hardware grid and the spec sheet. Its six-lead harness runs three modes plus a pattern and sync line. The G3 publishes three LEDs behind a 120-degree optic in a smaller body, which is what lets it fit the narrow openings the larger head cannot clear.

No. The fixtures run on 12 V vehicle supply. Mode selection and pattern or sync are handled on the harness leads, so a switch panel is all most installations need.

Tie the pattern and sync lead across every head on the vehicle. Heads that are not synced will drift out of phase and read as visual clutter rather than as a single warning signal, which is the opposite of what you paid for.

Ultra Bright Lightz does not publish a current draw for these fixtures, so there is no amperage, total system draw or wire-gauge figure anywhere on this page. The "3 W" LED figure is a die class rating rather than what the fixture consumes, and multiplying it by LED count produces a number that is badly wrong. Get real figures from Ultra Bright Lightz at 1-888-562-5125 before you size a fuse, a relay or a wire run.

Keep them on separate circuits. Scene lighting is for working the site and should be aimed outboard and downward, below the horizon. Warning lighting is for being seen from a distance. Running them together means you either blind oncoming drivers or turn off your warning lights to stop doing so.

A dual-color fixture carries two independently driven LED channels behind the same lens, and you switch between them rather than blending them. The rocker panel, the tailgate bar, the surface mount and the Color Flood Mini are dual color; the U-Lite 600 stick light is not. The stick light instead drives six modules of four LEDs each independently, which is what produces its left, right and split directional sequences — all in one color across the span.

Permitted use depends on the specific product, how it is installed, the class of vehicle it is installed on, and the law where that vehicle operates. Amber is shown as the default throughout this page because it is the usual permission for commercial and work vehicles. Red and blue are restricted in most jurisdictions to authorized public-safety use, and some jurisdictions restrict green, white or purple as well. Confirm with your state or provincial authority, your local jurisdiction and your own employer or department policy before you buy.

No. Nothing on this page is a certification, an approval or a compliance determination, and it should not be treated as one. It is a fitment and specification reference. The legal question is answered by your jurisdiction, not by a catalog.

Because the hardware supports them and authorized operators buy them. Availability in the catalog is not permission to use. The configurator on this page defaults to amber and requires an explicit public-safety role selection before it will show restricted colors, for exactly that reason.

Treat them as representative. Pattern libraries differ between fixtures and between production runs. The rear bar publishes 120 patterns across three modes with directional sequences. Confirm the exact pattern set on the product page for the SKU you are ordering.

Ultra Bright Lightz publishes 24-hour processing on most orders, and orders at or above $199 ship free. Processing time is not transit time, so check the shipping method at checkout if a truck is going back out on a specific day.

Warranty and return terms are set and published by Ultra Bright Lightz, not by this page. No returns window or warranty length is stated here because none is quoted in the source material we hold, and those are not numbers to approximate. Confirm both with Ultra Bright Lightz at 1-888-562-5125 before you order.

Ultra Bright Lightz has sold vehicle warning and scene lighting since 2006. The company was founded by Justin Tomney. Thousands of items in stock, with US phone support at 1-888-562-5125. This page is a fitment and specification tool covering part of their catalog; the order itself is placed on their site.