Universal Voltage Compatibility: This versatile e-bike controller is compatible with 24V, 36V, and 48V setups, ensuring a for a wide range of bicycles. Perfect for DIY Enthusiasts: Ideal for bicycle modifications, upgrade your bike with this high-performance e-bike controller. Compatible with 15A three-mode waterproof controller with self-learning function Compatible with 250W and 350W brushless geared motors with fully waterproof connectors Compatible with 24V, 36V, and 48V voltages Note:Product labels have different contents due to different batches. Color:Black Material:Aluminium Package Contents: 1 * Bike Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.