KT Sine Wave E-Bike Controller with LCD5 Display – 36V/48V Waterproof Kit

The KT Sine Wave E-Bike Controller with LCD5 Display is a reliable motor control upgrade designed for 36V and 48V electric bike systems. Available in multiple current ratings from 14A to 25A, it delivers smooth and efficient motor performance while providing riders with real-time ride information through the included LCD5 display.

Featuring sine wave technology for quieter operation and improved power delivery, this controller is ideal for upgrading or replacing compatible e-bike control systems. Its waterproof connectors and integrated lighting output make it suitable for commuting, touring and everyday riding.

Dimensions

KT-14A

• Rated voltage: 36V / 48V
• Rated power: 250W
• Rated current: 7A
• Maximum current: 14 ±1A
• MOSFETs: 6
• Dimensions: 9.1 × 3.9 × 2.7 cm (3.58 × 1.54 × 1.06 in)
• Weight: 207 g (0.46 lb)

KT-15A

• Rated voltage: 36V / 48V
• Rated power: 250W
• Rated current: 7A
• Maximum current: 15 ±1A
• MOSFETs: 6
• Dimensions: 8.8 × 5.5 × 3.5 cm (3.5 × 2.2 × 1.4 in)
• Weight: 202 g (0.45 lb)

KT-17A

• Rated voltage: 36V / 48V
• Rated power: 350W
• Rated current: 8A
• Maximum current: 17 ±1A
• MOSFETs: 6 high-performance
• Dimensions: 9.8 × 6.4 × 3.8 cm (3.9 × 2.5 × 1.5 in)
• Weight: 250 g (0.55 lb)

KT-22A

• Rated voltage: 36V / 48V
• Rated power: 500W
• Rated current: 11A
• Maximum current: 22 ±1A
• MOSFETs: 9
• Dimensions: 13 × 7 × 4 cm (5.1 × 2.8 × 1.6 in)
• Weight: 356 g (0.78 lb)

KT-25A

• Rated voltage: 36V / 48V
• Rated power: 750W
• Rated current: 12A
• Maximum current: 25 ±1A
• MOSFETs: 9 high-performance
• Dimensions: 13 × 7 × 4 cm (5.1 × 2.8 × 1.6 in)
• Weight: 356 g (0.78 lb)

Performance

The KT controller utilises advanced sine wave technology to deliver smoother acceleration, quieter motor operation and improved riding comfort compared to traditional square wave controllers.

Available in five output options ranging from 14A to 25A, riders can select the controller best suited to their motor and power requirements.

Key performance features include:

• Smooth sine wave motor control
• Compatible with 36V and 48V e-bike systems
• Current options from 14A to 25A
• Low-level brake input
• Throttle input range: 1V to 4.2V
• Integrated LCD5 display for real-time ride data
• Built-in lighting output for compatible e-bike lights

Safety and Features

The controller is fitted with waterproof SM connectors to help protect electrical connections from rain and road spray, improving reliability in all weather conditions.

The included LCD5 display provides clear access to essential riding information including speed, battery level, pedal assist settings and system status, allowing riders to monitor performance while cycling.

Multiple controller options make this kit suitable for a wide range of electric bike conversion projects and replacement applications, from lower-powered commuter bikes to higher-output e-bike systems.

Its compact aluminium housing helps dissipate heat efficiently while protecting internal electronic components for dependable long-term performance.