Features1Double Lightline: 36/48V KT25A controller has double lightline, and the instrument controls the light on and off. 2Aluminum Alloy Material: Sturdy and durable, easy to use, compact in structure and easy to carry. 3Strong Compatibility: Suitable for 500W to 750W motors. It must be used for KT brand meters. 4High Performance: More stable, higher efficiency, lower current consumption and longer life. 5Continuous Mileage Increased: Reduce the temperature rise of the controller and increase the continuous mileage of the electric bicycle.SpecificationItem Type: KT-25A ControllerColor: As Pictures ShownMaterial: Aluminum AlloyWeight: Approx.413g/14.6ozController Box Size: Approx. 12.8x6.5x3.9cm/5.0x2.6x1.5inRated Current: 12AMaximum Current: 251ASpeed Setting: 1-4.2VBrake Input: Low LevelApplicable: 500W to 750W MotorMOSFETS: 9 MOSFETSPackage List1 x Controller1 x Manual