There hundreds of ways to customize your big rig with watermelon lights.

These cab/marker lights can be paired to custom body paint colors, the primary semi truck headlights, exterior chrome trim pieces, and various accent lights to create a truly custom look and feel. 

Here are the 19 best places to start mounting watermelon lights on your truck.

Customize the Front End with Watermelon Lights

Adding watermelon lights to bumpers, air cleaners, and grilles visually widens and lowers the stance of the truck.

Style Choices & Brands

Among the watermelon light style choices, you can mix it up with jeweled housings from Roadworks, and low profile or raised glass lenses. 

Not only can watermelon lights be mounted nearly anywhere on the cab, they come in a variety of base sizes.

Explore various bezel sizes and can lay flat surface level to mount point, or flushed and exposed to showcase more chrome that complements additional exterior chrome trim accent pieces. 

Watermelon Light Patterns, Sizes & Brands

Among watermelon lights, there are plenty of aftermarket brands to consider: RoadWorks, Trux, BTS Lighting, Legendary Lighting, and more. 

Our in-house brand of watermelon lights, Legendary, is sold in numerous sizes. 

Miniature accent lights that can be strategically placed across the sleeper cab, or large lights that create powerful starburst pattern configurations for a unqiue underglow effect. 

#1. Watermelon Lights for Visors & Roofs

Replaces standard, flat factory clearance lights with the classic, multidimensional starburst halo. It "crowns" the rig, making the cab look taller and undeniably old-school.

#2. Front Bumper Watermelon Lights

Drops the visual weight of the truck. A bottom-lip light bar filled with watermelons gives the rig a lowered, aggressive "bulldog" stance sweeping the asphalt.

#3. Grille & Surround Watermelon Lights

#4. Headlight Bracket Watermelon Marker Lights

Front headlight brackets can be integrated with marker lights, like watermelon lights. 

#5. Dual-Facing Watermelon Lights on the Front Fender

Adds functional width and clearance visibility for oncoming traffic, while simultaneously giving the driver a glowing visual marker of their front corners from the seat.

#6. Air Breather Watermelon Lights

The ultimate classic Peterbilt and Kenworth flex.

Running lights up the front and back of the breathers frames the hood, emphasizing the massive, squared-off architecture of a traditional front end.

Cab & Sleeper Profile Lighting

#7. Side Sleeper Panel Watermelon Lights

Side sleeper watermelon lights create an unbroken horizontal line of nighttime glow.

This adds some depth to the truck, stretching its visual length and making it look like it is hugging the highway.

#8. Rear Sleeper Watermelon Lights

Rear sleeper watermelon lights help to outline the vertical edges of the back wall, defining the shape of the sleeper from a rear-angle view.

You can add various bezels, depending on the style you want. 

#9. Cowl Panels for Watermelon Lights

Sleeper cowl panels can come with a variety of pre-cut light slots for marker lighting styles.

You can add watermelon lights here if you get the right model, or if you get a custom-made cowl panel in a fab shop. 

#10. Mirror-Mounted Watermelon Lights

Draws the eye upward, balancing the heavy lower-panel lighting and adding nighttime width to the truck's highest points.

#11. Step Box Watermelon Lights

This fills the visual "dead space" between the front wheels and the fuel tanks, highlighting the polished aluminum or chrome of the steps.

Frame-Mounted Underglow Lighting

#12. Underbody Watermelon Lights Filler Panels 

Frame filler panel light-hole cutouts with bezeled watermelon lights.

Filler frame panels serve a dual purpose: They hide the unsightly frame rails, plumbing, and wiring under the cab, while projecting the ribbed glass light pattern directly onto the pavement for a custom under-glow effect.

Rear or Cab & Chassis (Aft) Lighting

Every area on the back of your semi truck cab, including the back of cab panels, the deck plate, rear light panels, rear fenders, and mud flap brackets are great spots for adding more accent watermelon lights. 

#13. Back of Cab (BOC) Watermelon Light Panels

BOC watermelon light panels help to fill the massive, flat, unpainted or blank void on the back of the sleeper, turning a blank wall into a focal point.

#14. Rear Center Light Panel (Taillight Panel) Watermelon Lights

The rear center light panel watermelon lights transform the standard utilitarian red-colored DOT-compliant tail lighting to a cohesive, custom show-truck finish that ties the whole theme together.

#15. Frame Mounted Deck Plate Light Box Watermelon Lights

The "glow" creator. Because the deck plate is highly polished, the lights bounce off the metal, creating incredible depth and ambient light in the normally dark, greasy space just ahead of the fifth wheel.

Pair watermelon lighting fixtures with additional accent lights that match the color/hue on the deck plate. 

#16. Watermelon Lights on Rear Mud Flap Light Bar & Center Panels

These lights frame the rear drive axles. It ensures the custom lighting theme remains uniform all the way down to the rear bumper line.

#17. Frame-Mounted Watermelon Lights Near the Rear Fenders

These frame-mounted watermelon lights help to cast luminous light directly onto the polished surface of stainless/fiberglass half-fenders, specifically highlighting the rear wheel setup.

Interior Cabin Lighting Upgrades

#18. Watermelon Lights for Headliners & Ceiling

Interior watermelon lighting replaces harsh, sterile factory LED dome lights with a warm, vintage ambiance, casting a starburst pattern onto custom vinyl or button-tuck interiors for a premium cabin feel.

#19. Watermelon Lights on Tankers and Trailers

Tankers and trailers can be outfitted with watermelon lighting across various parts of the tractor-trailer or tanker. 

Practial Tips for Personalizing the Truck with Watermelon Lighting

• Pick one style first. Use tight, even rows for a clean custom look, wider spacing for an old-school look, or larger clusters for a show-truck build.
• Start with one anchor area. Visors, bumpers, air cleaners, sleeper panels, and rear light bars create the strongest visual impact.
• Follow the truck’s body lines. Align lights with panel edges, chrome trim, steps, fenders, or frame rails so the layout looks intentional.
• Balance the truck from front to rear. Heavy bumper lighting looks better when paired with visor, sleeper, or rear-frame lighting.
• Match light size to the panel. Mini lights suit narrow trim and sleeper edges. Larger watermelon lights work better on bumpers, deck plates, and rear panels.
• Use symmetry. Measure from the centerline and keep equal spacing on both sides.
• Test the pattern first. Use painter’s tape, paper circles, or a cardboard template before drilling.
• Highlight chrome surfaces. Mount lights near polished tanks, deck plates, fenders, or step boxes to reflect the glow.
• Avoid visual clutter. Leave some dark space between lighting zones so each group stands out.
• Choose practical locations. Keep lights away from exhaust heat, tire travel, moving brackets, steps, and areas exposed to heavy road debris.

Customize Your Truck with Watermelon Lights at 4 State Trucks

Explore Legendary and Legendary Extreme watermelon lights at 4 State Trucks.