Cybernetica AS Department of Navigation Systems


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Buoy Lantern E807


We regret to inform you that this product is DISCONTINUED; please find our current products here
 

The Buoy Lantern E807 is a LED-based marine signal lantern with a built-in flasher for application in sea buoys and moorings, as well as in various fixed lights.

The visibility range of an E807 lantern with one E80x LED disc light source is about 3 NM (according to the Visibility Range Table below); however, the range is easily extended by stacking several LED discs from the E80x family on the lantern. We can offer different configurations of the E807 Buoy Lantern with up to 5 LED discs according to the required range and color.

General benefits of using LED-lanterns
Long lifetime (up to ten years). This makes the maintenance costs of LED-lanterns, in comparison with
traditional light bulbs,  much lower because there will be no need in frequent and expensive maintenance
trips to lights only for the purpose of changing of failed  bulbs.

Significantly lower  power consumption (up to 1.5 times)   due to  higher efficiency of LEDs. This is very
useful when using them in primary battery powered sea buoys, as well as  in case of lighthouses and
beacons powered by solar or wind energy.

No need for colour filters and additional optics. The color of the light of LEDs is determined by the physical
properties of  light-emitting semiconductor crystals used in them, i.e. by the type of LEDs. Therefore,
no additional colour filter is needed which would cause some loss of  light intensity.
 
 
Features
  • Programmable automatic control of flashing operation
  • Daylight-dependent activation of flashing using a photosensor
  • Synchronization of flashing with other lights
  • Readiness to operate within a remote monitoring and control system (requires addition of a communication controller)
    • Relatively high intensity of light output - from 10 to 30cd per disc
    • Wide range of applicable power supply voltages - from 6V to 20V DC
    • Choice of low or high power mode by an external resistor
    • Choice of wide or narrow vertical divergence (factory option)

      Specifications
       

      Main Components 1 to 5 LED discs, Flasher E864, hermetic enclosure, photosensor, lantern cover*) 
      Input voltages 6V ...20V DC
      Power consumption of 1 disc 2.0W to 3.3W
      Flash length (programmable) any multiples of 10ms, up to 60.01s
      Period time (programmable)  any multiples of 20ms, up to 655.5s
      Light sources 150mm LED discs E801...E804
      Vertical divergence 2q(1/2)>25°, 2q(1/10)>50°,
      Ambient temperature -30°C to +55°C** (IEC 68-2-1,2,14)
      Relative humidity max 98% at +35°C (IEC 68-2-3)
      Dimensions diameter 248mm, height typically 270mm (depends on the cover type, and the number of LED discs used)
      Weight 5.8kg (typical)
      Mounting Arrangement Flange with 6 holes on 220mm circle (typical), or according to customer requirements
                                               *) customer specified
                                              **) the temperature  range can be optionally extended

      Visibility Range Table (fixed installation, at the atmospheric transparency 0.74)

      Number
      of 
      LED discs
      E801 (Red)
      E802 (Yellow)
      E803 (Green)
      E804 (White)
        Intensity, cd     Range, nm
      Intensity, cd     Range, nm
      Intensity, cd     Range, nm
      Intensity, cd     Range, nm
      1
      10 (15)                2.6 (3.0)
      10 (15)                2.6 (3.0)
      15 (20)                3.0 (3.3)
      10 (15)                2.6 (3.0)
      2
      20 (30)               3.3 (3.8)
      20 (30)               3.3 (3.8)
      30 (40)                3.8 (4.1)
      20 (30)                3.3 (3.8)
      3
      30 (45)               3.8 (4.2)
      30 (45)               3.8 (4.2)
      45 (60)               4.3 (4.6)
      30 (45)               3.8 (4.2)
      4
      40 (60)                4.1 (4.6)
      40 (60)                4.1 (4.6)
      60 (80)                4.6 (4.7)
      40 (60)                4.1 (4.6)
      5
      50 (75)                4.4 (4.7)
      50 (75)                4.4 (4.7)
      75 (100)                4.7 (4.9)
      50 (75)                4.4 (4.7)
      Vert. div.
      2q(1/2) >25° (typical)
      2q(1/2) >25°  (typical) 
      2q(1/2) >25°  (typical) 
      2q(1/2) >15° (typical)
      Intensities and visibility ranges of LED Disc versions with a lens (E80x.1)
      E80x.1
      E801.1 (Red)
      E802.1 (Yellow)
      E803.1 (Green)
      E804.1 (White)
      1
      20 (30)               3.3 (3.8)
      20 (30)               3.3 (3.8)
      25 (35)               3.6 (4.0)
      20 (30)               3.3 (3.8)
      2
      40 (60)                4.1 (4.6)
      40 (60)                4.1 (4.6)
      50 (70)               4.4 (4.9)
      40 (60)                4.1 (4.6)
      3
      60 (90)                4.7 (5.3)
      60 (90)                4.7 (5.3)
      75 (105)              5.0 (5.4)
      60 (90)                4.7 (5.3)
      4
      80 (120)              5.1 (5.6)
      80 (120)              5.1 (5.6)
      100 (140)              5.4 (5.9)
      80 (120)              5.1 (5.6)
      5
      100 (150)              5.4 (6.0)
      100 (150)              5.4 (6.0)
      125 (175)              5.6 (6.2)
      100 (150)              5.4 (6.0)
      Vert. div.
      2q(1/2) >8° (typical)
      2q(1/2) >8°  (typical) 
      2q(1/2) >8°  (typical) 
      2q(1/2) >8° (typical)

                                (x) - values in brackets correspond to the high power mode

      If you need more information, including the information on prices and availability of our products, please do not hesitate to contact our marketing group.


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      © 2001 Cybernetica. Last updated 2011-03-01