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Cejay Engineering Neptune

Cejay Engineering Neptune Blue & White Navigation Light


The Cejay Engineering Neptune beacon, a multi-purpose developed to provide the soldier and officer several ID and illumination tools in one compact package.

SKU: 902900IR Category:

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Cejay Engineering Neptune

P/N: 902900IR

The Cejay Engineering Neptune beacon is a multi purpose multi function signal light developed to provide the soldier and officer several ID and illumination tools in one compact package. The Neptune light produces a wide, variable-output, flashing or constant on, IR, Blue or White signal. In flashing IR mode, the intense brightness of the Neptune’s signal allows it to be used as either an individual or vehicle Combat ID marker. In Blue or White signal mode, the beacon can be used as either a land or water distress signal. The Cejay Engineering Neptune high impact plastic housing and sealed electronics are engineered to withstand harsh environments and chemical exposure.

Powered by one CR123A, the Cejay Engineering Neptune is lightweight, rugged, versatile and submersible to 150 feet making the beacon superbly suited for water to land deployment and special operations applications. Despite its small size, all Neptune functions can be controlled with one hand even when gloved. The Neptune’s signal is turned ON or OFF simply by rotating the battery cap. The single mode selection button allows the user to select light color and move between flashing or constant on signal mode. Brightness level can also be adjusted in constant on mode, making the light useful as either a signaling device or lamp. The Neptune can be attached to PALS webbing, belts, or uniform by using the supplied locking spring clip or wrist mounted with the included wrist strap.

Cejay Engineering Neptune Specifications

  • Weight: 76 Grams | 2.7 Ounce (with battery)
  • Size: 49mm x 27mm | 1.9″ x 1.06″
  • Flash Mode: Constant ON with Brightness Control | Fixed Flash
  • Signal: IR, White, Blue LED
  • Battery: One CR123A
  • Coverage: 360 degrees x 180 degrees
  • Switching: Rotate Battery Cap and Mode Switch
  • Operating Life: 100 Hours in Flashing signal mode | 8 Hours at maximum brightness in Constant ON signal mode
  • Environmental: Waterproof 16m (150 feet)|
  • Options: Neptune Signal Light (902900)

Additional information

Weight .15 lbs
Dimensions 4.25 × 2.75 × 1.5 in


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