Features: Before purchasing, please ensure that your motor output line is a 9pin waterproof line and that your instrument is compatible. Our controller aiming to improve efficiency and reduce current consumption, extend the service time of electric bike motors, and reduce temperature rise during operation. The KT-15A 6 Tube 36/48V waterproof connectors controller offer enhancing universal compatibility, supporting both 36V and 48V eBike systems for easily riding experience. Designing with aluminum alloy body, this controller ensures smooth, while optimizing efficiency and reducing current consumption to extend motor life. With easy installation, replace your damaged controller effortlessly and enjoy a better riding experience. Specifications: Material: Aluminum Alloy+ABS Size: approx. 5.3x8.2x3.2cm/2.09x3.23x1.26inch(excluding wire) Model Name: KT-15A Electric Bike Controller Power: DC36V/48V Current: 151A Speed setting: 1-4.2V Current: 7A Brake input: Low level Low voltages protections: DC30/400.5V Connectors: waterproof connectors Package Includes: 1Pc KT-15A Electric Bike Controller note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.