Smart Auto-Start Rear Light IPx6

Dimensions: 16 × 6.5 × 4 cm. Weight: 85 g. Main body constructed from durable aluminium alloy. Features 20 imported high-brightness LED beads and a Fresnel lens for focused, glare-free illumination. Rated IPx6 waterproof — fully protected against powerful water jets from any direction. Battery endurance up to 33.5 hours on a single USB charge. Equipped with a built-in high-precision motion and tilt sensor, combined with depth-sensing algorithm, the light detects even slight braking motions with near-zero false triggers. Horizontal angle auto-adjusts to match seatpost inclination — maintaining correct orientation during climbs, descents, or uneven terrain. Smart activation modes include motion-triggered start/stop (lights on when bike moves in low light; off after 45 seconds of stillness) and ambient light sensing (auto-on in darkness; auto-off after 30 seconds in bright conditions). Advanced filtering ignores minor vibrations from road bumps or rocking, yet reliably activates brake warning for significant deceleration events like potholes or heavy damping. Designed for daily commuting, weekend rides, and all-weather cycling across UK and European roads — especially useful in variable light conditions, urban traffic, and hilly terrain where consistent rear visibility and responsive braking signals are critical.