Features1KT 7A controller has the characteristics of more stability, high efficiency, low current consumption and long service life. 2The brushless motor controller can provide steady speed and sensitive control of braking and direction changes. 3KT900S LED display meter is only applicable to KT series controllers, not applicable to other controllers, which allows you to view data intuitively. 4This speed controller kit is suitable for 36V/48V 250W motors and suitable for DIY electric bicycles. 5Using highquality aluminum alloy and plastic, it is durable and has a long service life.SpecificationItem Type: Electric Motor Controller KitMaterial: Aluminum Alloy + PlasticProduct Color: As Pictures Shown Controller Box Size: Approx. 8.5x5.2x3.1cm / 3.3x2.0x1.2inProduct Weight: Approx. 543g / 19.2ozRated Current: 7ASpeed Setting: 1-4.2VMaximum Current: 151APackage List1 xKT7A Controller1 xKT900SLED DisplayPanel1 x Display Manual1 x Thumb Throttle1 x Speed Assist Magnetic Point1 x Wiring Diagram