Selected warehouse item: Double Fury 4 LED Dual Function Crystal Watermelon Light – Red & Purple. Original item SKU: 36173. Ships from our Canadian warehouse while stock remains available.
Product Overview
Unlike smooth dome watermelon lights, the crystal-cut polycarbonate lens creates sharper light dispersion and a more aggressive, faceted appearance.
This is 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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Custom show trucks
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Livestock and utility trailers
The larger 1-1/8″ lens diameter provides more visual presence than compact 3/4″ minis while still mounting into a standard 3/4″ hole.
Key Features & Benefits
Four High-Intensity Dual-Function LEDs
Delivers bright, energy-efficient illumination in both primary and secondary circuits.
Crystal Injection-Molded Polycarbonate Lens
Impact-resistant lens enhances light clarity and long-term durability.
Chrome Plastic Bezel
Provides a polished, finished look that complements stainless and chrome trim packages.
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
Designed for harsh trucking environments and long-haul reliability.
Independent Secondary Circuit
Yellow wire allows separate activation of the purple LED for flexible wiring control.
Performance / Compatibility / Use-Case
This Double Fury model features two independent LED circuits:
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Primary LED: Red
DOT/SAE FMVSS 108 compliant for rear clearance/marker use. -
Secondary LED: Purple
Activates separately and overrides the red LED when powered.
When both circuits are energized, the purple LED overrides the red LED, allowing:
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Auxiliary lighting setups
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Accent lighting control
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Custom switch-triggered effects
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Show-truck configurations
⚠️ The purple secondary LED is intended for auxiliary or off-road use only. Confirm local regulations before public-road installation.
This 1-1/8″ Crystal Double Fury Watermelon Light is ideal for:
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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 builds
Primary red LED supports compliant rear clearance applications when installed properly. Secondary purple LED supports auxiliary or decorative configurations.
Installation / Fitment / Technical Details
Brand: United Pacific Industries
Item Number: 39233
LED Count: 4 Dual-Color LEDs
Lens Diameter: 1-1/8″
Mounting Hole Required: 3/4″ Diameter
Voltage: 12V DC
Water 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 (+)
Compatible Harnesses (Sold Separately):
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Item #34191 – 3 Prong Female Bullet Plugs Wire Harness 6″ Lead
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Item #34192 – 3 Prong Female Bullet Plugs Wire Harness 12″ Lead
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 & Purple LED
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Chrome plastic bezel
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Threaded mounting stud
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Nylon mounting nut
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 LED overrides the primary when activated.
Is the purple LED street legal?
No. The purple LED is generally intended for auxiliary or off-road use. The red primary LED meets DOT/SAE FMVSS 108 standards for rear clearance lighting when installed correctly.
Does this require a 1-1/8″ mounting hole?
No. The lens measures 1-1/8″, but installation requires a 3/4″ diameter mounting hole.
Is this light waterproof?
Yes. It is IP67 rated and features epoxy-sealed electronics for moisture protection.
What’s the difference between crystal and smooth watermelon lenses?
Crystal lenses feature a faceted design that enhances light dispersion and gives a sharper, more aggressive appearance compared to smooth dome versions.
Crystal Clarity. Dual-Color Impact. Built to Perform.
The Double Fury 4 LED 1-1/8″ Crystal Watermelon Light – Red & Purple combines bold styling, flexible dual-color control, and commercial-grade durability in one premium clearance light. Perfect for drivers who want compliance, customization, and maximum visual impact.
