Five light modes for you to choose freely, right turning mode(flashing 25 times , about 10s), left turning mode(flashing 25 times , about 10s ), continuous light mode, quick flashing light mode and slow flashing mode, sufficing your different using needs. The light base can be 45 degree adjusted for better lighting performance, preventing for glare effectively. The elastic installation ring can quickly fix the light on bike, no complex installation process, universal for most bike. Attached remote controller can effectively adjust the light in far distance. USB rechargeable, large built-in 500mah can support long working time, with only 1.5-2.5hours charging time.