4 in 1 Multifunctional The powerful 4 in 1 multifunctional bike light can be used as a bicycle headlight, mobile phone holder, mobile power supply and electric horn, and can also be used as an emergency flashlight. The super bright LED bicycle light can immediately improve your vision and safety to ensure your safety when riding at night.4000 mAh Rechargeable BatteryThe bicycle headlight can be charged with micro USB cable, it can be charged via your computer or any device with a micro USB charging port. The 4000 mAh large-capacity rechargeable battery takes only 3-5 hours to fully charge, and the operating time is 8 hours at the medium lighting mode and 4 hours at the highest lighting mode, which can be also used to charge your cell phones.Super Stable Phone HolderThe bicycle front light is suitable for mobile phones with a width of 5.8-9cm, universal adjustable width of this bicycle phone mount makes it fitting any phones up to 6.4inch. With highly sponge pad and non-slip silicone material, the phone holder will provide your phone a comprehensive protection, which ensure your phone stays securely attached to the handlebar of your bicycle during riding.3 Lighting ModesThe bike light has 3 lightning modes: Hight/Medium/Strobe. The hight lightning mode is 550 lumens, which can be used for 4 hours; the medium lightning mode 220 LM, can be used for 8 hrs, and strobe lightning mode 550 LM, can be used for 6 hrs.Easy Installation and Widely UsedConvenient installation but super stable phone holder. It can better protect the safety of pedestrians and vehicles and prevent accidents. This is an excellent bicycle accessory gift for outdoor lovers. The bike light also fits for most vehicles Handlebar rack such as motorcycle/MTB/mountain Bike/E-bike/Folding bike/scooter etc.