3 LED E-Bike light, the Flex is the e-mtb oriented light with a possible output of up to 3300 lumens in a lightweight and compact unit Powered via the battery/motor system, so you can do away with the traditional onboard battery system The Flex utilizes REFLEX ++ technology for smarter battery management, and is fitted with wired remote for easy mode changes Fitment is from a new single sided reinforced nylon bracket, allowing for central mounting position on the bike