United Pacific 36173 · Crystal Double Fury four-LED light
Red primary low/high with separately powered Purple secondary colour
UPI 36173 uses four dual-colour LEDs behind a clear polycarbonate Crystal lens with a chrome plastic bezel. The red primary colour has separate low and high inputs, while the purple secondary colour uses its own positive lead.
Primary low and high
Black powers the red primary low function and red powers the red primary high function.
Purple secondary circuit
Yellow powers the separately controlled purple secondary colour. United Pacific designates the secondary colour for auxiliary/off-road use only.
Crystal lens and sealed build
A clear polycarbonate Crystal lens, chrome plastic bezel, epoxy sealing and IP67 water resistance combine classic styling with weather-resistant construction.
Wiring, mounting and package
Match the 12V four-wire connection and verify the mounting shank
Four-wire hookup
- White: ground
- Black: primary low positive
- Red: primary high positive
- Yellow: secondary positive
- Male bullet plugs
Mounting-source difference
United Pacific’s current family page specifies a 3/4-inch installation hole. United Pacific’s November 2025 Crystal flyer lists a 5/8-inch hole for this exact manufacturer SKU. Check the supplied instructions and measure the actual mounting shank before drilling.
Need a separate mount? Compare penny and watermelon-light brackets, then check the exact light’s retention method, bezel and rear clearance against the bracket and mounting location. A matching hole size alone does not confirm fit.
What’s included
- (1) Double Fury 4 LED 1-1/8" Crystal Watermelon Light – Red & Purple LED
- Chrome plastic bezel
- Threaded mounting stud
- Nylon mounting nut
The family page lists DOT/SAE and FMVSS 108. Confirm the primary colour, function, mounting position and installation requirements for the exact application. The purple secondary colour is for auxiliary/off-road use only.
Compare Mini watermelon lights by LED colour, lens style and function, then compare each light’s exact colour, wiring, mounting and package details.
Before you choose
United Pacific 36173 questions
What does “Double Fury” mean?
This UPI option has four dual-colour LEDs. The red primary colour has separate low and high inputs, and the purple secondary colour uses its own positive lead.
Is the purple LED street legal?
United Pacific designates the purple secondary colour for auxiliary/off-road use only. The family page lists DOT/SAE and FMVSS 108; confirm the primary colour, function, mounting position and installation requirements for the exact application.
Does this require a 1-1/8" mounting hole?
United Pacific’s current family page specifies a 3/4-inch installation hole. United Pacific’s November 2025 Crystal flyer lists a 5/8-inch hole for this exact manufacturer SKU. Check the supplied instructions and measure the actual mounting shank before drilling.
Is this light waterproof?
United Pacific lists IP67 water resistance and epoxy-sealed construction for this family.
What’s the difference between crystal and smooth watermelon lenses?
United Pacific describes a unique clear Crystal watermelon-shaped polycarbonate lens with enhanced light dispersion. A smooth watermelon lens uses a different lens profile; compare each light’s exact lens style and specifications.
Warranty
Warranty: 3-year manufacturer warranty.






















