Specification: Style: striae & Round Operating voltage: 5V Adjustment range: Minimum? 4.0V Function: high, medium and low grades governor. 1x Brushed controller unit 1000w. The item "48v 1000w Electric Motor Speed Controller Batteries Charger Throttle Grips Keys" is in sale since Wednesday, May 22, 2019.This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Electric Bicycle Components". The seller is "tdpro99" and is located in Wollogong, NSW. This item can be shipped worldwide.