Marinebeam Ultra Long Range CREE RLT Illuminator

Marinebeam Ultra Long Range CREE RLT Illuminator
Item# LR-XLM-2

Product Description

Marinebeam Ultra Long Range CREE RLT Illuminator
DUE TO EXCESSIVE DEMAND DUE TO RECENT PUBLICITY, WE ASK THAT EACH CUSTOMER LIMIT THEMSELVES TO 3 UNITS PER ORDER. We are increasing production, and hope to be able to provide in larger quantities soon.

This is the same lamp recently reviewed and recommended in Sail Magazine, and National Fisherman Magazine, and the January 2015 issue of Boating Magazine.

While this looks like an ordinary LED flashlight, it is really Marinebeam's new and patented Ultra Long Range LED Illuminator Spotlight, which has an ANSI-FL1 rated usable range distance of over 650 meters, which is longer than any other handheld LED device in this category, period.

This ultra-collimated beam illuminator is made specifically as a handheld searchlight for spotting buoys, channel markers, crab pots, etc, at night. It is also useful for search and rescue, and for attracting attention of rescue personnel, aircraft, etc. The best part is that it lasts up to 18-hours on high beam, and there are no expensive and unreliable batteries - just 3 standard D-cells.

If you have used portable Q-beam™ type spotlights on-board, you know that to use one effectively you have to send someone up to the bow to deploy it. They really aren't practical to quickly use from the cockpit, because all of the spillover light is reflected back into your eyes and destroys your night vision. We love this light because its beam is super collimated, and has almost no spillover light, so it is easily and quickly deployed from the cockpit, and doesn't reflect back and ruin your night vision.

It uses a remarkable patented* invention called Recycled Light Technology (RLT), which is a simple, cost-effective way to dramatically increase the brightness and efficiency of standard LEDs. It uses a passive component technology that increases the usable light output of its CREE LED by over 2.5 times. It does so by collecting the high-angle spill-over light that would normally be wasted, and redirects this light back onto the emitter surface. This re-excites the LED phosphor generating more light, further collimating it, and directing it down range. The usable LED light output is significantly boosted by the RLT, with no additional LED input power required and no change in LED lifetime.

In fact, the best part of the technology is that the power consumption and lumen output of this lamp does not need to be unnecessarily high, because the lumen-density (illuminance/lux) is off the charts.

So, DO NOT just use our lumen figures to understand this lamp's output or its long range illumination capabilities. As a point of reference, a normal LED flashlight would need more than 2,800 lumens to get the same ANSI beam distance, and would have nearly 50° of wasted spill over light. This flashlight has no spill-over light whatsoever.

By redirecting and recycling all of the normally wasted light energy, we can throw all of the beam energy down range. The best analogy to understand this concept is a laser beam. Handheld lasers have incredible distance capabilities, even when using very, very low power (tenths of a Watt). This is also true of Marinebeam's illuminator. We can get an ANSI/FL1 beam distance of over 650 Meters and a very compact spot size, with only 300 lumens. The spot is so precise and well defined that when it is shined upon a wall, you will actual see an image of the LED chip itself projected. The perimeter of the spot is a perfectly crisp line, all of the light inside the spot is high energy light, and there are no halos, rings, or dark spots like you would find on a typical searchlight.

The ANSI/NEMA FL1 Standard defines the "maximum beam distance" as the distance (in meters) at which the light will produce 0.25 lux of illuminance. So, that is the equivalent light, at 670 meters, of a full moon in an open field on a clear night.

See the image at right taken by's Ben Ellison of the Marinebeam Illuminator light beam trained on several boats approximately 500 yards away.

The Marinebeam Ultra Long Range LED Illuminator is tough and impact-resistant, with a lightweight aluminum casing resisting rust and corrosion. It also features a long lasting Cree XML2 LED made by Cree USA, a world leader in LED technology.

  • Ultra Long Range
  • Ultra Narrow Beam
  • 300 Lumens
  • 670 Meter ANSI specified Beam Distance on High Beam
  • Up to 18 Hour Run Time (High), 120 Hours (Low)
  • High, Low & Strobe function
  • IP67 Waterproof (Submersion to 1M for up to 30 minutes)
  • Batteries: 3 D-Cells (included)
  • Diameter: 2.6"
  • Length: 12.5"
  • Weight 2.3 Lbs. (including batteries)

    We 100% guarantee that if, within 30 days, you don't find this to be the best handheld LED spotlight available, we will buy it back - no questions asked.

    The heart of the Illuminator is the RLT collar, shown here in light blue at right. It reflects all of the spillover and blue wavelength light back onto the phosphor mix of the LED emitter. The emitter then absorbs this energy, and re-emits light in a new wavelength, and through the center hole of the RLT collar. This recycling of the wasted spill-over light means that that wasted energy can now go down-range as higher density light.

    *Dr. Kenneth Li patented the RLT technology. Dr. Li holds a BSEE from California Institute of Technology. He completed his MSEE and PhD in quantum electronics from Northwestern University and University of California, Berkeley respectively. He also completed his EMBA at UCLA. Dr. Li has held various senior positions in TRW Technology Research Center, PCO, Inc. (Joint venture of Corning and IBM), and Hewlett Packard, where he was responsible for the development and manufacturing of lasers, LEDs, and photodetectors for fiber optic communication.

  • To learn more technical information about Marinebeam LED's click here