Feature: 1. Premium Material: Brush motor speed controller kit is made of premium aluminum alloy and rubber material, waterproof, high strength and durable. 2. Excellent Performance: Professional manufacturing, exquisite workmanship, good heat dissipation, provide better protection for the internal circuit. 3. Strict Standards: Built to greatly quality control standards, electric brush motor speed controller has stable performance and high reliability. 4. Package: Includes 1pc electric brushed speed controller, 1pc throttle twist grip, 1pc electric door lock, 2pcs keys, can meet your needs. 5. Wide Application: Electric motor controller set fit for wind turbine scooter, small electric car, cart, electric bike, go kart, electric tricycle, and so on. Specification: Item Type: Brush Motor Speed Controller Set Material: Aluminum alloy, rubberMounting Hole Size: M4Rated Voltage of Controller: DC36V Rated Power of Controller: 500W Throttle Grip: 1-4V Lines: 8 groups(battery, motor, charging port, power, brake light, brake, speed control grip, electric door lock) Fitment: Fit for wind turbine scooter, small electric car, mechanical equipment, electric motorcycle DIY engine kit, cart, electric bike, go kart, electric tricycle, DIY engine system, bike parts, even lawn mower and more machinery equipment and so on. Package List: 1 x Brush Motor Speed Controller1 x Electric Door Lock2 x Key1 x Throttle Grip Note: The battery line of the thick red line is positive, the thick black line is negative, the motor line of the thick blue line is positive, the thick yellow line is negative.