The i-Run team says
Technologies
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Silva Intelligent Light
Combination of different types of light beams to provide you with the lighting best suited to your needs.
The combination of a long-range spotlight and a proximity floodlight results in LED head movement, better control, improved balance, less fatigue, and higher speed.
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IPX7
IPX7 waterproof rating: can be submerged in water for 30 minutes at a depth of 1 meter.