Safety improvement & 6 modesThis bike light is essential for safe driving. The lateral light distribution is wider at 85 degrees of illumination. When there are oncoming vehicles and pedestrians, you can reduce the glare by lighting the safety light and Prevent accidents. There are high, medium, low, low speed flashing, high speed flashing, SOS about the front bike light, and the light switch is button type, it is easy to operate. USB rechargeble bike lights setThe charging time is shortened by 50% or more compared to other models, the 3 parts indicator to notify the switch part of the remaining battery power is instal led so that the remaining power Never Buy Batteries Again Both the front lights and rear bike light are USB rechargeable. All you need is a USB cord (included ) and a power source to recharge (Computer, laptop or a cellphone charger) Can last aroud 2 hours in STRONG mode, Light up your night. Super bright led bike lights+ipx65 waterproofWe can ensure the bike front light really bright( Please see what our customer SAYS); IPX6-rated water resistant and designed for use in heavy rain. Its durable aluminum body and shock-resistance endure rough handling. Do not be afraid of the rough road Versatile,can be mounted without toolsMountable Diameter: 17 ~ 44 mm, Because it can be easily removed from the handle holder, it will be detached from the bicycle so it can be removed and carried, so it will be a theft prevention. It can also be used as a light if removed.Use it when you're running, jogging, hiking, camping, walking your dog, cycling, changing a tire, night time family/kids activities, power outage and MORE