Features: Mountainous bike electric power conversion accessories 30A 3 modes sine wavy controller with SW900 LCD instrument. The SW900 display meter is with 5pin waterproof connectors designing specifically for 24V 36V and 48V systems. The controller is a sine wavy three modes examination controller, pair with Hall brushless motor, with self-learning function. Suitable for 36V750W 36V1000W 48V750W 48V1000W brushless motors with or without Hall effect. Metal housing, with excellent heat dissipation performances. Specifications: Material: Plastic+Metal Color: black Controller: approx.14.5x3.6x6cm/5.71x1.42x2.36inch Display Meter: approx. 110x61mm/4.3x2.4inch Controller Parameters: Voltages: DC24V/36V/48V Speed Set: 1.1-4.2V Cable length: about 13-18cm Current: 15A Mosfets: 12 Mosfets Brake input: low level Current: 30A??1A Low voltages protections: DC30/40??0.5V Meter Parameters: Connectors: 5Pin Voltages: 24V/36V/48V Waterproof: IP56 Package Includes: 1Pc SW900 Display Meter 1Pc 30A Sine Wavy Controller note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.