Product Overview
Sometimes a product doesn’t pass every quality test — but still deserves a second chance.
This Amber/Blue Watermelon LED Marker Light combines the classic 3.5″ watermelon cab light design with a dual-color LED system that lets you switch between amber and blue illumination depending on your wiring setup.
It’s bold, colorful, and occasionally unpredictable — but at this price, that’s part of the deal.
Key Features & Benefits
Dual-Color LED Lighting
Switch between amber and blue illumination depending on how the light is wired.
Amber gives you the traditional marker-light look, while blue adds a bold custom glow.
Classic Watermelon Lens Styling
The clear domed lens with starburst reflector pattern creates the iconic watermelon-style lighting effect.
19 LED Internal Array
Nineteen LEDs provide strong illumination behind the lens for a bright marker-light appearance.
Standard 3.5″ Watermelon Mount
Designed around the listed 3.5-inch watermelon mounting format. Compare the existing bucket, lock-ring interface and wiring clearance before ordering; the truck make alone does not confirm the fit.
Included Mounting Parts
Includes reflector cup, lock ring, and wiring leads to simplify installation.
Performance / Compatibility / Use-Case
Works with 12V DC vehicle electrical systems.
Fits standard 3.5″ watermelon light housings commonly used on:
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Semi trucks
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Cab light bars
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Custom pickup builds
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Parade trucks
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Trailer lighting systems
Blue lighting may be restricted for public roadway use depending on location.
Installation / Fitment / Technical Details
Each LED color has its own power lead.
Typical wiring configuration:
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One lead powers the amber LEDs
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One lead powers the blue LEDs
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Ground wire completes the circuit
⚠️ Important
If both color wires receive power simultaneously, both colors will illuminate together.
Using a 3-position switch or separate toggle switches is recommended.
Build Quality / Warranty
These lights did not pass final quality control inspection.
Possible issues may include:
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Lens fogging
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LED flickering
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Early LED failure
Because of this:
No warranty. No returns. Sold as-is.
They’re discounted heavily and intended for builders who want a budget option or spare lights for experimentation.
What’s Included
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(1) Amber / Blue Dual-Color Watermelon LED Marker Light
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(1) Reflector cup
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(1) Lock ring
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(1) Pigtail wiring leads
Frequently Asked Questions
How do I select amber or blue?
Each color has its own power lead, with a shared ground. Wire the amber and blue leads to the intended switching arrangement so the desired color can be selected.
What happens if both color leads receive power?
Both colors illuminate simultaneously on this older Alpha-W product. Do not assume the color-priority or brightness behaviour of a newer Glass Is Class Gen 2 Duo bulb.
What should I measure before ordering?
This light lists a 3.5-inch watermelon mounting format. Compare the bucket, reflector cup, lock-ring interface and rear wiring space with the actual installed light; the lens size alone is not a complete fit check.
Does it work on a 24V circuit?
This exact listing specifies 12V DC. Do not treat it as a 24V light merely because other truck accessories accept both voltages.
Which parts come with one light?
One amber/blue dual-color LED marker light, reflector cup, lock ring and pigtail wiring leads are listed. Plan any switches, vehicle wiring and additional mounting needs for the installation.
Does this clearance light include warranty or return coverage?
No. These lights are sold as-is with no warranty and no returns due to quality control issues. The disclosed possible issues include lens fogging, LED flickering and early LED failure.
Where should I look for the current Glass Is Class range?
Compare Glass Is Class Gen 2 for a new custom marker or accent project. It is a different product generation with its own mounting, wiring and warranty terms. Match the exact selected assembly to the project.
