Keenso--Electric bike brushed controller has excellent thermal controller housing, which is designed with aluminum alloy. Controller can protect the internal circuit and avoid thermal overload through good thermal dissipation. Feature: 1. Aluminum alloy housing, with groove designed , protect the internal circuit, good heat dissipation function to avoid heat overload. 2. Wire and interface is wear-resistant, ensuring long-term use of low fault. 3. Select the corresponding voltage controller according to the battery voltage level of the E-Bike. 4. Simple installation, no need complicated tools, save time and effort. 5. Anti-slip, with over-current protection, dependable to use. 6. Built-in smart chip, provides more stable startup performance. Specification: Condition: 100% Brand New Item Type: Brushed Controller Material: Aluminum Alloy Color: Silver Model: YJD01 Quantity: 1 Size: Approx. 9 x 7 x 3.5cm/3.5 x 2.8 x 1.4in Voltage: 36V Power: 500W Applicable Motor: 180W-1000W Various Common DC Brush Motor Package List: 1 x Brushed Controller Notes: 1. Please allow 1-3mm error due to manual measurement. 2. Please make sure our product is perfectly fit for you. 3. Please choose your favourite color. As you know, because of the influence of light and environment, actual items may slightly different from the listing images. I will appreciate that if you really love our product. 4. Thanks for your understanding.?Good Thermal Dissipation?-- Electric bike brushed controller has excellent thermal controller housing, which is designed with aluminum alloy. Controller can protect the internal circuit and avoid thermal overload through good thermal dissipation. ?Specification?-- Condition: 100% Brand New, Item Type: Brushed Controller, Material: Aluminum Alloy, Color: Silver, Model: YJD01, Quantity: 1, Size: Approx. 9 x 7 x 3.5cm/3.5 x 2.8 x 1.4in, Voltage: 36V, Power: 500W, Applicable Motor: 180W-1000W Various Common DC Brush Motor. ?Durable and Anti-abrasion?-- The 36v 500w controller has durable wires and interface abrasion that can ensure low failures for continuous use, which is suitable for brush controllers, electric cars, battery cars as well as your old cars. ?Non-Slip Line & Stable?-- Electric bike brushed controller has non-slip line that can provide overcurrent . Built-in intelligent chip will be more stable startup without hall status. ?Corresponding Voltage Controller?-- Electric bike brushed controller can select the corresponding voltage controller that is based on the battery voltage level of the electric vehicle. Brush controller for electric battery car for the elderly.