Smart Auto-Sensing Bike Brake Tail Light 300 Lumens High Brightness, 8-Level ...

Crafted from aviation-grade aluminum alloy, this lightweight (46g) light boasts IP66 waterproofing, resisting heavy rain and harsh weather. The built-in vibration sensor puts the light into sleep mode after 30 seconds of inactivity; a gentle tap wakes it up, preventing battery drain.

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