1. The terms “white light”, “red light”, “green light”, “yellow light” and “blue light” mean lights of colours according to the provisions referred to in Annex 4 to these regulations;
2. The terms “strong light”, “bright light” and “ordinary light” mean lights of intensities according to the provisions referred to in Annex 5 to these regulations;
3. The terms “scintillating light” and “quick scintillating light” mean rhythmic lights flashing 40-60 times per minute and 100-120 times per minute;
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