48V Universal (support both voltage). Dual mode controller (more stable, high efficiency, low current consumption, long life). Support KT LED or LCD control panel or without any control panel (Universal). Low voltage protection: DC40±0.5V. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Electric Bicycle Components".The seller is "cscwheels" and is located in this country: CN. This item can be shipped worldwide.