IPX6 Smart Rear Light Auto Brake Detection

Physical specs: 16 cm long × 6.5 cm wide × 4 cm deep; net weight 85 g. Housing made entirely of CNC-machined aluminium alloy — lightweight, thermally efficient and highly resistant to impact and corrosion. Output powered by 20 premium-grade red LEDs, optically enhanced by a Fresnel-patterned polycarbonate lens for wide-angle, diffused brightness. Fully USB-rechargeable with up to 33.5 hours of continuous runtime. Certified to IPX6 international waterproof standard — withstands direct water jet exposure at 100 kPa pressure for 3 minutes from any angle. The smart functionality centres on three interlocking systems: (1) A calibrated inertial sensor detects deceleration and rearward weight shift with high sensitivity and low latency; (2) Adaptive horizontal compensation recalibrates beam alignment in real time as the bike pitches during climbing or descending; (3) Dual environmental sensing — both ambient light level and micro-motion — enables context-aware behaviour: immediate illumination upon bike movement in darkness, graceful fade-out after stillness, and seamless transition between lit/unlit zones without user input. Vibration filtering ensures only meaningful braking events trigger the warning flash — ignoring typical road chatter or mounting adjustments. Engineered for reliability in daily use: suits riders who commute year-round across cities and suburbs, carry bikes on trains or buses, or ride in rapidly changing light conditions — where consistent, trustworthy rear visibility directly impacts safety and confidence.