1、17A Brushless Motor Controller: Can provide stable speed and sensitive braking and direction change control. 2、Waterproof Function: To ensure maximum durability in any weather conditions, not afraid of wind and rain. 3、Safety Protection: High performance wire and waterproof interface are durable, ensuring long term use and low failure rate. 4、Easy to Install and Use: Equipped with wiring identification instructions, usually suitable for 250W brushless motors. 5、Good Heat Dissipation Function: Shell is made of aluminum alloy with groove design, which can protect the internal circuit and avoid thermal overload. Item Type: Sine Wave Controller Color: As Picture Shown Material: Aluminum Alloy Controller Type: Sine Wave Controller Connector Type: Waterproof Connector Maximum Current: 17±1A Speed Setting: 1-4.2V Rated Current: 8A Brake Input: Low Level Weight: Approx.320g/11.3oz Controller Box Size: Approx.93x61x35mm/3.7x2.4x1.4in Controller Wire Color Definition: 1. Black Long Wire: Motor Wire 2. Red and Black Single Short Wires: Power Cord 3. Black Long Wire (Fine Hole): One for Four, One for Five (9 Cores) 4. Black Line and Red Head: Light Line 5. Black Line and Yellow Head: PAS Speed Assist Sensor Line 1 x Controller 1 x Manual