Ebike Sine Wave Controller 24V/36V/48V 17A + S866 LCD | 350W

Three-Mode Sine Wave Ebike Controller with S866 LCD Display

Upgrade your electric bicycle with this versatile sine wave controller — compatible with 24V, 36V, and 48V systems up to 350W. Designed for smooth, quiet motor operation, this three-mode controller pairs seamlessly with the included S866 LCD display for a clean, intuitive riding experience.

Why Choose This Ebike Controller?

• Three-Mode Operation: Easily switch between riding modes for flexible control over speed and power output.
• Sine Wave Technology: Delivers smoother, quieter motor performance compared to square-wave controllers — ideal for commuters and trail riders alike.
• Wide Voltage Compatibility: Works with 24V, 36V, and 48V DC motor systems, making it suitable for a broad range of ebike builds and conversions.
• S866 LCD Display Included: Clear, easy-to-read screen shows speed, battery level, assist mode, and more. Simple plug-and-play installation.
• Waterproof Connector: Weather-sealed connectors keep your electrical connections protected from rain, mud, and moisture during outdoor rides.
• Built-In Headlight Function: Integrated headlight control output adds convenience and visibility for night riding.
• Solid Metal Housing: Rugged metal enclosure shields internal circuitry and promotes efficient heat dissipation, extending the life of your controller.
• Shock-Resistant Construction: High-intensity materials keep the unit stable on rough terrain.

Specifications

• Voltage: 24V / 36V / 48V
• Current: 17A
• Compatible Motor Power: 350W DC Motor
• Motor Type: DC Motor (Brushless)
• Controller Type: Three-Mode Sine Wave
• Display: S866 LCD
• Connector Type: Waterproof
• Color: Black + Silver
• Material: Metal + Plastic
• Battery Included: No
• Country of Origin: Made in China

Package Contents

• 1× Electric Bicycle Sine Wave Controller
• 1× S866 LCD Display
• 1× One-to-five-wire harness
• 1× 130× Throttle

Note: Only the above package contents are included. Measurement tolerance is ±1–3 cm. Colors may vary slightly due to display settings and lighting.

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Learn More About Electric Bike Safety

For guidance on safe electric bicycle use and regulations, visit the U.S. Consumer Product Safety Commission – Bicycle Safety.

Learn more: Electric bicycle

Frequently Asked Questions

Q: Is this sine wave ebike controller compatible with my 36V 350W motor?

A: Yes! This controller supports 24V, 36V, and 48V systems for DC motors up to 350W, making it compatible with most standard ebike hub motors in that voltage and wattage range.

Q: Does the S866 LCD display come pre-wired or does it require installation?

A: The S866 LCD display uses a plug-and-play waterproof connector system. It is designed for straightforward installation — simply connect the matching connectors between the display and controller. No soldering is required for standard setups.

Q: Will the waterproof connector hold up in rainy riding conditions?

A: Yes, the waterproof connectors are designed to protect electrical connections from moisture, rain, and light splashing during everyday riding. For best longevity, avoid prolonged submersion and ensure all connectors are fully seated before riding in wet conditions.

Q: Can I use this controller for a DIY ebike conversion kit?

A: Absolutely. This controller is a popular choice for DIY ebike builds and conversion kits. Its wide voltage compatibility (24V/36V/48V) and included S866 display and throttle make it a complete starting package for most 350W DC motor conversions.