Feature: 1. KT 7A controller is more stable and has high efficiency, low current consumption and long service life. 2. The brushless motor controller can provide steady speed and sensitive control of braking and direction changes. 3. KT LCD5 display panel is only applicable to KT series controllers, not applicable to other controllers, which allows you to view data intuitively. 4. This controller kit is suitable for 36V/48V 250W motors and suitable for DIY electric bicycles. 5. It uses high‑quality aluminum alloy and plastic and is durable and has a long service life. Specification: Item Type: Electric Motor Controller Kit Material: Aluminum Alloy + Plastic Product Color: As Pictures Shown Controller Box Size: Approx. 8.5x5.2x3.1cm / 3.3x2.0x1.2in Product Weight: Approx. 565g / 19.9oz Rated Current: 7A Rated Voltage: DC36V / 48V Speed Setting: 1-4.2V Low Voltage Protection: DC30 / 40±0.5V Maximum Current: 15±1A. Package List: 1 x KT 7A Controller1 x KT‑LCD5 Display Panel1 x Display Manual 1 x Thumb Throttle 1 x Speed Assist Magnetic Point1 x Wiring Diagram