Ziemi provides a clip‑on, battery‑powered lighting module that uses biomotion sensors to detect leg movement and project high‑output LEDs onto a cyclist’s legs, creating a bright side‑visible silhouette. The system operates locally, is IP67‑rated, and meets EN 15194 standards, delivering up to 30 m of side illumination without manual activation. It is compatible with any standard bicycle, enhancing lateral visibility for commuters, recreational riders, and bike‑share fleets.
Funding
Funding not disclosed
Founders
Product
Problem
Cyclists often remain poorly visible from the side in low‑light conditions, and conventional bike lights focus mainly on forward illumination. This limited side visibility contributes to a high proportion of lateral collisions, especially in urban traffic and on dark roads.
Solution
Ziemi offers a motion‑activated lighting system that projects light onto the rider’s legs, creating a bright, side‑visible silhouette that is instantly recognizable as a cyclist. Integrated biomotion sensors detect leg movement and trigger high‑efficiency LEDs, providing illumination only when the rider is active. The system is clip‑on, battery‑powered, and waterproof, making it suitable for everyday commuting and recreational riding. Independent testing shows the lighting makes cyclists 52 % visible earlier and 24 % recognizable sooner, helping motorists detect and react to cyclists more quickly. The solution works on any standard bicycle without requiring complex installation or external power sources.
Features
- Biomotion sensor that detects leg movement and automatically activates the LEDs, eliminating manual switching
- High‑output LED array focused on the rider’s legs, delivering side‑visible illumination up to 30 m
- Clip‑on housing compatible with all bike frames and rear‑light models, with a sealed, IP67‑rated enclosure for rain and dust resistance
- Low‑power consumption battery delivering up to 30 hours of continuous use, with a built‑in charge indicator
- Certified to European bike‑lighting standards (EN 15194) for safety and legal compliance
- Real‑time motion detection reduces glare for following traffic while maintaining high visibility
- Optional rear‑light variant combines standard rear illumination with the same leg‑lighting technology for 360° visibility
- Cloud‑free operation; all functionality is performed locally on the device, ensuring privacy and reliability