News

  • Roses look fine and healthy after the winter
    Great energy savings potential of our LED lamps

    more

  • First half-year vegetable cultivation experiment
    Our LED lamps gave very good results

    more

  • Vistvæn Orka Inc participated in Algae Congress 2009
    Our technology impressed experts and visitors alike

    more

Horticulture (flowers and vegetable)
 
 
We have successfully tested our energy efficient and water cooled long lasting LED (Light Emitting Diode) prototype lamps specially developed for cultivation of flowers and vegetable for the horticulture sector. We now have successful cultivation results for number of vegetable species as well as different types of roses.
 
 
LED lamps
 
LEDs do not radiate heat towards the plants as HPS lamps do. However, there is a heat (junction temperature) generated within the LEDs which must be removed so performance and longivity of the LEDs can be secured. As today´s LEDs are becoming more and more powerful (1W, 3W, 5W and higher wattage exist), ordinary methods like fan cooling or cooling using a heat sink are insufficient for greenhouse environment.
 
To solve this problem above, Vistvæn Orka Inc has developed a unique water cooling method for cooling the LEDs in the lamps.  This new cooling method addresses two important issues:
 
  • Fyrstly, the LEDs in the lamps will last longer, or up to 100.000 hours.
  • Secondly, the cooling system is in fact a closed circuit with continous cooling water flow. If for any reason the closed circuit breaks, or if the water temperature increases above certain threshold due to a failure, a sensor circuit sends an alarm to the security system, which in turn switches the LED lamps off.  This way it is easy to prevent damage due to failures or theft.
 
The LED lamps can easily fit any sizes of greenhouses. By utilizing Flow Network Modeling (see the picture below) in the cooling system design, we can optimize the performance and longivity of each the LED lamps in the circuit.
 
 
 
Our greenhouse LED lamps have number of advantages over HPS lamps, f.ex. lower energy consumption, higher longivity, less maintainance, contain no toxic substances like mercury, no fire hazard and finally have a built-in theft protection in the cooling circuit.
 
For further information on our horticulture LED lamps, please see our contact details below.
 
 
 

 
 
High Technology Greenhouses
 
Our LED lamps are suitable for computer controlled high technology greenhouse cultivation, saving energy and addressing environmental issues. Utilizing our LED lamps, the greenhouse owner can optimize the cultivation process and at the same time reduce the electricity bill by 49% or more.
 
 

For more information:

Tel: +354-553-6752
 

We are a member of: