Features: Premium 2500W metal brushless motor controller delivers power transfer and precise speed regulation for high performances electric bikes, featuring grooved aluminum housing for heat dissipation. Enables smooth control and low noise operation, with integrated over current/voltages/temperature protection circuits ensuring reliable performances under heavy loads. Ideal for e bike enthusiasts, electric scooter technicians, and DIY mechanic seeking professional motor control solution for conversions or performances upgrades. Perfect for urban commuting, industrial automation systems, and electric vehicles requiring stable power management in demanding temperature environments. Universal compatibility with 48-72V systems and waterproof connector ensures seamless integration with most brushless motors, while the wiring harness guarantees vibration resistance for long term durability. Specifications: Material: Aluminum Voltages: 48-60-64-72V Power: 2500W Current Limited: 55A Suited Motor Power: 100W-1500W Phase Angle: 60/120° Size: About. 11x5x19cm/4.33x1.97x7.48in Package Includes: 1pc Sine Waves Controller note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.