| 摘要 |
Illumination device for the so called trim threads (3) that are fastened on both side of a sail (2) in order to indicate the air flow conditions on the front and backside of this, which includes a light emitting diode (10) on each side of a sail, mast stay or like and so placed that the area with the trim threads can be illuminated and that it further includes switching means that via infrared light from a remote control and one or two diodes are controlled only to provide the electric current to one light source at a time in order to enable illumination with only the light source on the lee-side of the sail.
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