This display adopts fine quality materials, lightweight, rainproof, sturdy and practical. The controller is brushless type, working more fast, silently and sensitive to the state of electric bike. Features: This display adopts fine quality materials, lightweight, rainproof, sturdy and practical. LCD display can clearly show the state and data, backlight enables you to see scree clearly in dim environment, buttons for quick operation, easy to use. The controller is brushless type, working more fast, silently and sensitive to the state of electric bike. Easy to install and use, comes with mount for LCD display. Suitable for electric bicycles, scooters etc. Specification: Material: Plastics + LCD + Metal LCD Display Model: S866 Controller Model: S6-61 Type: 2 Types(optional) Type 1: 24V-48V 350W(limited current 15A), Type 2: 36V-60V 350W(limited current 15A), Available undervoltage: Type 1: 19V, 29V, 39V, Type 2: 29V, 39V, 49V Waterproof: IP65 Power: 350W Surface Size: Approx. 80 * 50mm / 3.1 * 2.0in Display Size: Approx. 53 * 34mm / 2.1 * 1.3in Controller size: 85 * 52 * 30mm / 3.3 * 2.0 * 1.2in Package size: 200 * 150 * 100mm / 7.9 * 5.9 * 3.9in Package weight: 306g / 10.8ounce Package List: 1 x LCD Display 1 x Controller