Attwood LightArmor HPX 3-LED Blue Underwater Light

The Attwood LightArmor HPX is a 4-inch underwater light with 3 blue LEDs, a dedicated heat sink and reverse polarity protection.

Four inches with three LEDs is the smallest HPX fixture, for a small transom or a boat wanting several discrete lights rather than one bright one. The 6-inch 12-LED version is the larger option in the same line, and the choice follows the hull rather than the assumption that more is better.

Being HPX, the LED technology is the extreme high performance grade, so three LEDs here are not directly comparable to three in the standard line. Comparing fixtures across the two lines by LED count alone will mislead, and the output figures are what matter.

Reverse polarity protection means a wiring error during installation will not destroy the light. Below the waterline that protection is worth more than on deck, since replacing a failed fixture means hauling the boat or diving to reach it. Explore more underwater lights.

• 4 inches with 3 LEDs, the smallest HPX
• The 6-inch 12-LED version is the larger option
• HPX LEDs are not comparable by count to the standard line
• Reverse polarity protection saves a haul-out