BT10 is a specially designed professional bicycle light for bicycle enthusiasts. It delivers a max 350-lumen output. Employing the pioneering dual distance beam system, the upward beam of BT10 is refracted by the lens, forming an auxiliary beam in the front area of the wheels where ordinary bicycle light can not reach. With its advanced aspherical light cup design and broad beam distance up to 140m, it can bring the users a broader view in the night riding.