LEZ COMBO CONNECT SMART 1000XL/KTV SMART PRO BLACKOnce programmed and paired, the front light wirelessly controls the rear light when toggling through its modes Use the LED Ally app to setup only the modes you need, and up to four mode sets for whatever type of riding is planned, day or night The front light features 8 modes, up to 1000 lumens of maximum output and features Lezyne`s MOR (Maximum Optical Reflection) lens which boosts and evenly distributes the lights beam Rear light has 6 output modes