60V-72V 1500W-3000W 45A 3-mode Sine Wave ebike Controller with Colorful LCD Display (Regenerative only for 60/72V)60V 72V 1500W 3000W 45A Sine Wave 3 mode Intelligent Controller with Colorful LCD Display for eBike Electric Bike Very important Notice: If your system is 60V 72V, we recommend you to use this one but not use 48 72V. Because Regenerative function (ABS function) can't be universal for 48V and 60 72V system. This controller can only work without display or with our display, please never use it with your own display (because program is different) Why 3