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Technical Data of Searchlights

Optimum Light

Decisive factors for the light intensity of a high-performance searchlight are the applied illuminant and the quality of the reflector. Optimal reflection performance and even 20 % more light intensity are obtained with the WISKA parabolic mirror of glass. The 'A' searchlights are equipped with a reflector of high-gloss aluminium.

Optimum Light

WISKA searchlights are suitable for all ocean-going and inland-waterway vessels - typical examples being merchant vessels, along with Defence, Costal Watch, Search & Rescue, Police, Customs and Fire fighting. The following lighting elements are available to suit different applications and illumination ranges:

Halogen incandescent lamps are spotlights of temperature which emit up to 20% of the electric power absorbed by a Wolfram light wire as light:

  • Constant light colour
  • Full luminous intensity after switching on, immediate restarting
  • Also suitable for onshore security
  • Average life time of lamps between 75 hrs and 400 hrs
  • Range up to 1,700 m

Halogen metal halide lamps stand out due to extraordinary light colour and optimal yield of light based on valuable metal additions in the discharge of gas:

  • Ideal for navigation in ice with separate power supply unit
  • Heating included
  • Constant light colour, high portion of blue colour, nearly daylight spectrum
  • Full luminous intensity after 45 sec., immediate reignition without cooling period
  • Average life time of lamps up to 750 hrs.
  • Range up to 4,000 m

Xenon lamps are stuffed with pure xenon. The discharge bow burns under extreme pressure reaching the highest luminous density among all lamps. The xenon lamps have a very long working life.

  • Ideal for navigation in ice, long range with separate power supply unit
  • Heating included
  • Constant light colour, high portion of blue colour, nearly daylight spectrum
  • Full luminous intensity after switching on, immediate reignition without cooling period
  • Average life time of lamps up to 1,500 hrs
  • Range more than 8,000 m

Range comparison WISKA LIGHT Searchlights

Type
 
Capacity
[W]
Voltage
[V]

Luminous intensity
[mio.cd]

Range
[m]

Divergence
[°l/10]

Xenon short arc lamps      
SX 450 1.600 115/230 1ph. 50/60 Hz
or
115/440 3ph. 50/60 Hz.
 
74,0 8.600 2,4
  1000 64,0 8.000 1,8
  2.000
 
92,0
 
9.600
 
2,7
 
Metal halide lamps      
SH 300 575 230 5,2 2.280 6,0
SH 450 1.200 230 17,0 4.100 5,0
SH 400
 
575
 
230
 
12,0
 
3.460
 
6,0
 
Halogen lamps      
SW 450 2.000 115 3,0 1.730 6,5
  2.000 230 2,0 1.400 7,0
SW 450A 2.000 115 2,4 1.550 7,5
  2.000 230 1,6 1.280 8,0
SW 400 1.000 115 2,2 1.500 6,0
  1.000 230 1,5 1.250 6,5
SW 400A 1.000 115 1,8 1.350 6,5
  1.000 230 1,3 1.140 7,0
  650 230 0,8 900 5,5
SW 300 1.000 230 1,0 1.000 8,5
  650 230 0,8 890 5,5
  500 230 0,7 840 6,0
  250 24 1,3 1.140 4,5
SW 300A 1.000 230 0,7 840 8,5
  650 230 0,6 780 8,0
  500 230 0,5 710 6,0
  250 24 1,0 1.000 5,0
SW 200 100 24 0,4 648 3,5
  150 24 0,5 692 5,5
  250 24 0,7 848 6,5
SW 200A 100 24 0,4 590 4,0
  150 24 0,4 630 6,0
  250 24 0,6 775 7,0

 

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