Specification:Item Type: Electric Bike AccessoriesMaterial: Aluminum AlloyProduct Name: Instrument Brake ControllerRated Voltage: 24VRated Power: 250WUndervoltage: 21VAbout Current: 12AController Diameter: About 46.6mm / 1.83inController Length: About 88mm / 3.46inDescription:P00: Light Brightness, Level 1 is the darkest, level 3 is the brightest;P01: Mileage Unit, 0: KM; 1: MILE;P02: Voltage Level: 24v, 36v, standard 24v;P03: SlEep Time: 0 - No sleep; other numbers are sleep time, range: 1-60; Unit: minute;P04: Wheel Diameter: Unit is inch, Accuracy: 0.1;P05: Number of Speed Magnets: Range: 1-100;P06: Speed Limit: Range 0-100%, 100 means unlimited speed;P07: Starting from 0, non-0 start setting, 0: 0 start; 1: Non-0 start;P08: Soft start, hard start setting, 0: Hard start, 1: Soft start;P09: Automatic Cruise, 0: Cancel cruise function, 1: Auto-cruise starts after 7 seconds of acceleration;P10: Use password, 0: No password, 1: Password required;P11: Password: 00-99;P12: ODO presses the clear setting button for 5 seconds to clear the ODO.Package List:1 x 24V 250W LCD Monitor1 x Controller1 x 24 V LCD Monitor