Selected warehouse item: Double Fury 4 LED Dual Function Crystal Watermelon Light – Red & Blue. Original item SKU: 36171. Ships from our Canadian warehouse while stock remains available.
Product Overview
This Double Fury crystal watermelon light features two independently controlled LED circuits:
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Primary LED: Red – DOT/SAE compliant for rear clearance and marker use
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Secondary LED: Blue – Activates separately and overrides the primary when powered
When both circuits receive power, the blue LED overrides the red LED, allowing flexible lighting configurations for:
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Auxiliary lighting
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Accent lighting
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Show truck builds
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Custom switch-controlled setups
⚠️ The blue secondary LED is typically intended for auxiliary or off-road use only. Confirm local regulations before installation on public-road vehicles.
Key Features & Benefits
Four High-Intensity Dual-Function LEDs
Delivers strong illumination in both primary and secondary circuits while maintaining energy efficiency.
Crystal Polycarbonate Lens
Injection-molded, impact-resistant lens designed for long-term durability and improved light clarity.
Chrome Plastic Bezel
Provides a polished, professional finish that complements chrome and stainless trim.
Epoxy-Sealed Housing
Fully sealed to resist:
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Moisture intrusion
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Road salt
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Dust and debris
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Heavy vibration
IP67 Rated
Built to withstand harsh weather and demanding road conditions.
Independent Secondary Circuit
Yellow wire allows separate activation of the blue LED for custom switching setups.
Performance / Compatibility / Use-Case
The 1-1/8″ crystal-cut lens provides:
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Larger visual presence than 3/4″ minis
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Enhanced light dispersion
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A sharper, faceted look compared to smooth dome watermelon lights
Ideal for:
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Sleeper panel lighting rows
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Trailer perimeter lighting
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Rear cab installations
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Utility and livestock trailers
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Custom and show builds
The clear crystal lens maximizes LED brightness while maintaining a clean appearance when unlit.
This 1-1/8″ Crystal Double Fury Watermelon Light is commonly used on:
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Semi trucks and big rigs
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Commercial trailers
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Utility and livestock trailers
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RVs and buses
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Custom show vehicles
The primary red LED meets DOT/SAE FMVSS 108 standards for rear clearance/marker use when installed appropriately. The secondary blue LED is generally used for auxiliary or show lighting applications only.
Installation / Fitment / Technical Details
LED Count: 4 Dual-Function LEDs
Lens Diameter: 1-1/8″
Mounting Hole Required: 3/4″ Diameter
Voltage: 12V DC
Waterproof Rating: IP67
Compliance: DOT / SAE, FMVSS 108 (Primary Only)
Warranty: 3 Years
4-Wire Hookup (Male Bullet Plugs)
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White = Ground (-)
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Red = Primary High (+)
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Black = Primary Low (+)
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Yellow = Secondary (+)
Build Quality / Warranty
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Injection-molded crystal polycarbonate lens
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Chrome plastic bezel
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Epoxy-sealed electronics
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Threaded stud installation with nylon nut
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Designed for vibration-heavy commercial environments
This is a professional-grade clearance light engineered for real-world trucking—not just appearance.
Warranty: 3-year manufacturer warranty.
What’s Included
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(1) Double Fury 4 LED 1-1/8″ Crystal Watermelon Light – Red & Blue LED
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Nylon mounting nut with threaded stud
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Installation hardware
Frequently Asked Questions
What does “Double Fury” mean?
Double Fury refers to the dual-color LED configuration with independent primary and secondary circuits. The secondary color overrides the primary when activated.
Is the blue LED street legal?
The blue LED is generally intended for auxiliary or off-road use only. The red primary LED meets DOT/SAE FMVSS 108 standards for rear clearance lighting.
Does this require a 1-1/8″ mounting hole?
No. The lens measures 1-1/8″, but installation requires a 3/4″ mounting hole.
Is this light waterproof?
Yes. It is IP67 rated and features epoxy-sealed electronics for moisture protection.
Can I wire the blue LED to a separate switch?
Yes. The yellow wire allows independent control of the secondary LED.
Crystal Clarity. Dual-Color Control. Maximum Visual Impact.
The Double Fury 4 LED 1-1/8″ Crystal Watermelon Light – Red & Blue combines bold styling, flexible wiring control, and commercial-grade durability in one premium clearance light. Ideal for drivers who want compliance, customization, and standout presence.
