Sine Wave Controller which support 3-mode (hall sensor mode, non-hallmode, self-learning) and smart match with each motor through self-learning, works with high efficiency, less noise, and lower energy consumption, which makes your electric vehicles or electric motorcycles,more comfortable and easier to control,Parameter setting via display All protection and safe: over/under voltage, over current, over load, over heating, anti-runaway,locked-motor protection Multi functions: Work with hall sensor mode or non-hall mode, smart,match with different motor, 5-speed level for throttle and PAS, Speed limit,Reverse, Cruise, Push Assistant, Anti-thief, Regenerative,, Electric and etc. Rated power: 36V 1000W/ 48V 1500W/ 52V 1800W power: 36V 1500W/ 48V 1800W/ 52V 2200W Brake: low-pressure brake Current: 45A (MAX) Rotor position detection method: Hall sensor Waterproof grade: IP65 Voltage range: 36V/48V/52V Colour:Black Material:Plastic + Metal Size:212x86.5x48.5mm Specification:SW900 Package Contents: 1 x controller 1 x instrument SW900 Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.