Description: PREMIUM MATERIAL: LCD display adopts good quality materials, lightweight, rainproof, sturdy and durable, can clearly show the state and data . PROTECT CIRCUIT: Brushless Motor Controller shell is made of high quality aluminum with groove design, which can protect the inner circuit due to good heat dissipation feature . MUTE RUNNING: Adopt brushless motor controller, stable and silent, and is sensitive to the working state of the bicycle . SENSITIVE CONTROL: Electric Bike Motor Controller can provide steady speed and sensitive control of braking and direction changes . WIDE APPLICATION: suitable for electric bicycles, cars, scooters, electric bike . Specification: Material: Aluminum, LCD Voltage: 36V-48V Power: 250W/350W Color: Black Size: 83x53x31mm/3.27x2.09x1.22inch Size Chart: 83x53x31mm/3.27x2.09x1.22inch Controller: Mosfet: 6 Mosfet Cable length: 10-13cm Speed Set: 1.1-4.2V Current: 15A Booster: 1:4 Brake: Low Level LCD Display: Length: 167cm/65.74in Plug: 5Pin WaterProof Length: 19cm/ 7.48in Waterproof: IP56 Package Includes: 1 Piece LED Display 1 Piece Controller Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!