2. Battery-free device. No sudden lose of the power, no money for any batteries.
3. Built in capacitor as a back up power supply, the tail light remain flashing at least 10 minutes even when the bike is not moving.
4. No friction on the wheel, no resistance, no noise.
5. Easy installation. Fit on the front fork on most of the bikes. No teal down the original hub construction. (Not for the foldable and kiddy bikes.)
6. Generating power when biking. Continuous lighting day and night.
7. 3 bright white LED on the head light.
8. 5 red, 120 flashing per minute LED on the tail light. Clearly be seen 150m away from left, right and back direction.
9. Taiwan, China, Japan, Germany patented. Other area patent pending.
