Nulkomma LSW765-28-6FA-19 48V 17A Brushless Motor Controller 39V Low Voltage Protection E-Bike Speed Control Replacement Part with Mounting Screws

The Nulkomma LSW765-28-6FA-19 brushless motor controller serves as the core power control component for your electric bike, engineered with a rated working voltage of 48V and a maximum operating current of 17A to deliver stable, reliable power output for smooth riding performance. Built-in 39V low voltage protection function effectively prevents over-discharging of your lithium battery, safeguarding the battery lifespan and avoiding sudden power failure during long-distance cycling.

This e-bike speed controller adopts a sealed rugged black plastic housing design, offering excellent dustproof, waterproof and shock-resistant properties. It can withstand various harsh outdoor riding conditions, shielding the internal circuit board from moisture, dirt and bump damage to extend the service life of the controller. All wires are pre-fitted with standard dedicated connectors, enabling plug-and-play installation without complicated rewiring or circuit modification, which greatly saves your maintenance and replacement time.

Designed as a premium aftermarket replacement spare part, this brushless motor controller efficiently resolves common e-bike faults including motor startup failure, unstable speed, power stalling, abnormal acceleration and intermittent shutdown caused by damaged original controllers. Every unit undergoes strict factory performance testing before delivery, featuring strong anti-interference capability and precise throttle adjustment range (1.2V-4.4V) to restore your electric bike to its original sensitive and smooth speed control experience.

Complete with matched mounting brackets and fixing screws as included accessories, you can quickly secure this controller to your e-bike frame for stable installation. It is an ideal repair replacement accessory to bring your faulty electric bicycle back into normal working condition.