Attwood LightArmor HPX Underwater Light - 3 LED & Blue - 66UW03B-7
Manufacturer Part #: 66UW03B-7
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Attwood LightArmor HPX Underwater Light – 3 LED & Blue – 66UW03B-7
Add powerful underwater illumination and sleek style to your boat with the Attwood LightArmor HPX Underwater Light. Designed for durability and performance, this HPX model features three high-output blue LEDs that produce a vibrant glow while improving nighttime visibility around your vessel.
Built with a fully sealed, marine-grade housing, the LightArmor HPX is engineered to withstand harsh saltwater and freshwater environments. Its low-profile surface-mount design allows for clean transom installation without complex hull modifications, making it an excellent upgrade for a wide range of boats.
Energy-efficient LED technology delivers long service life with minimal power draw, providing reliable underwater lighting season after season.
Key Performance Features
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Extreme 1,350 Lumens: Offers roughly 68% more light output than the standard 4.0 HP model, creating a much larger and more vivid Sapphire Blue glow.
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Intelligent Thermal Management: Features the Exclusive Heat-Sync Cooling System with active overheat protection. If the light is accidentally left on out of water, it will automatically dim to protect the LEDs.
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Universal Voltage: Fully compatible with both 12V and 24V DC boat systems.
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Military-Grade Durability: Built with a fully-potted (resin-sealed) electronic board, a thick impact-resistant lens, and a polished 316 stainless steel bezel.
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Low Profile Design: At only 0.59" thick, it sits nearly flush to the hull, minimizing drag and the risk of catching on trailer bunks.
Technical Specifications
| Feature | Details |
| Model Number | 66UW03B-7 (HPX 4.0) |
| LED Color | Sapphire Blue |
| Output | 1,350 Fixture Lumens |
| Current Draw (13.6V) | 0.64 Amps |
| Current Draw (24V) | 0.32 Amps |
| Dimensions | 4.0" L x 2.15" W x 0.59" H |
| Warranty | Industry-leading 10-Year Limited Warranty |
In The Box
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1 x HPX 3-LED Light Assembly (Sapphire Blue)
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1 x 316 Stainless Steel Cover
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3-foot Sheathed Wire Lead
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Mounting Hardware (2 x #8 stainless steel screws)
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Installation Instructions
Ideal For
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Underwater transom lighting
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Night cruising and docking visibility
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Enhancing boat appearance and ambiance
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Recreational, fishing, and performance boats
SEO Meta Data (Shopify Ready)
Meta Title:
Attwood LightArmor HPX Underwater LED Light – Blue – 66UW03B-7
Meta Description:
Shop the Attwood LightArmor HPX Underwater Light with 3 high-output blue LEDs. Low-profile, fully sealed, marine-grade underwater LED lighting for freshwater and saltwater boats.
*All Light Armor Underwater lights must be mounted under water line. Only works underwater.
Manufacturer : Attwood Marine
Manufacturer Part No : 66UW03B-7
Attwood LightArmor HPX Underwater Light - 3 LED & Blue - 66UW03B-7 is backordered and will ship as soon as it is back in stock.
Attwood LightArmor HPX Underwater Light - 3 LED & Blue - 66UW03B-7
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